1. Which planet has the highest number of moons ?

A. Uranus B. Mars C. Saturn D. Jupiter

Answer: Option D
Explanation:
Jupiter has 67 moons or satellites. Jupiter is the fifth planet from the Sun and the largest in the Solar System.
2. Phobos is related to ....................

A. Mars B. Earth C. Saturn D. Neptune

Answer: Option A
Explanation:
Mars has two known satellites, Phobos and Deimos.
3. Which of the following is the second largest moon in the solar family?

A. Ganymede B. Deimos C. Titan D. Triton

Answer: Option C
Explanation:
Titan (or Saturn VI) is the largest moon of Saturn. It is the second-largest moon in the Solar System, after Jupiter’s moon Ganymede.
4. ....................... was the first Kuiper belt object to be discovered

A. Charon B. Pluto C. Ceres D. Haumea

Answer: Option B
Explanation:
Pluto is a dwarf planet in the Kuiper belt, a ring of bodies beyond Neptune. It was the first Kuiper belt object to be discovered.
5. Miranda is the moon of which planet ?

A. Uranus B. Neptune C. Jupiter D. Saturn

Answer: Option A
Explanation:
Miranda or Uranus V is the smallest and innermost of Uranus’s five-round satellites. Like the other large moons of Uranus, Miranda orbits close to its planet’s equatorial plane.
6. Which of the following has no moons ?

A. Eris B. Haumea C. Makemake D. Ceres

Answer: Option D
Explanation:
Among the other dwarf planets, Ceres has no known moons. It is 90 percent certain that Ceres has no moons larger than 1 km in size, assuming that they would have the same albedo as Ceres itself.
7. ...................is a photograph of the Earth

A. Blue Ball B. Blue Wall C. Blue Marble D. Blue circle

Answer: Option C
Explanation:
The Blue Marble is a photograph of the Earth, taken on December 7, 1972, by the crew of the Apollo 17 spacecraft, at a distance of about 45,000 kilometers (28,000 miles).
8. NASA Satellite Camera Provides “EPIC” View of Earth. What is EPIC?

A. Earth Poly Imagine Camera B. Earth Polychromatic Imaging Camera C. Earth Polarise Imaging Camera D. Earth Popular Imagination Camera

Answer: Option C
Explanation:
The color image of Earth was taken by NASA’s Earth Polychromatic Imaging Camera (EPIC), a four megapixel CCD camera and telescope. The image was generated by combining three separate images to create a photographic- quality image. The image was taken on July 6, 2015,showing North and Central America.
9. Which planet is also called as ‘ Lord of Heavens’?

A. Saturn B. Mars C. Jupiter D. Uranus

Answer: Option C
Explanation:
Jupiter, because it is named after the Roman God Jupiter, who was “Lord of the Heavens.”
10. ................ is also called as Green Planet

A. Earth B. Neptune C. Jupiter D. Pluto

Answer: Option B
Explanation:
Neptune is called a green planet because of the colors of the planets the greeny grass in the atmosphere of the frozen planet Uranus and the pure iceball that is Neptune.
11. The communication satellite GSAT -18 was launched in

A. 2015 B. 2016 C. 2014 D. 2012

Answer: Option B
Explanation:
India’s Communication satellite GSAT-18 was successfully launched from the European space pad of Kourou in French Guiana on October 6, 2016
12. Space lab Tiangong-2 is related to which country?

A. China B. Russia C. North Korea D. Japan

Answer: Option A
Explanation:
China’s experimental space lab Tiangong-2 orbiting the Earth with two astronauts on board has successfully launched a micro-satellite, roughly the size of a desktop printer on October 26, 2016.
13. Which of the following is India’s weather satellite?

A. SRE – 1 B. INSAT – 4CR C. INSAT – 3DR D. INSAT – 4B

Answer: Option C
Explanation:
The Indian Space Research Organisation’s (Isro) Geosynchronous Satellite Launch Vehicle-F05(GSLV-F05) lifted off from the Satish Dhawan Space Centre at Sriharikota in Andhra Pradesh, carrying with it the INSAT- 3DR weather satellite on September 8, 2016
14. World’s 1st Hack-Proof Communications Satellite launched by

A. Iran B. China C. USA D. India

Answer: Option C
Explanation:
China on August 16, 2016, successfully launched the world’sa first quantum satellite which boasts of establishing “hack- proof” communications between space and the ground as it is equipped with security features to prevent wiretapping and intercepts.The satellite was launched from the Jiuquan Satellite Launch Centre in northwestern Gobi Desert
15. Falcon 9 rocket was launched by

A. ISRO B. SpaceX C. NASA D. CNSA

Answer: Option B
Explanation:
SpaceX successfully landed the first stage of its unmanned Falcon 9 rocket on a floating platform in the Atlantic Ocean early on Friday after launching a Japanese communications satellite into orbit.
16. The first manned AVATAR flight is proposed for

A. 2019 B. 2018 C. 2020 D. 2025

Answer: Option B
Explanation:
AVATAR from “Aerobic Vehicle for Transatmospheric Hypersonic Aerospace TrAnspoRtation” is a concept for a manned single-stage reusable spaceplane capable of horizontal takeoff and landing.The first scaled-down tests are planned for 2016, and the first manned AVATAR flight is proposed for 2025.
17. ................ is a joint project of NASA and ISRO

A. NISAR B. RISAT C. SARNI D. NAISR

Answer: Option A
Explanation:
Nasa-Isro Synthetic Aperture Radar (Nisar) is a joint project between NASA and ISRO to co-develop and launch a dual frequency synthetic aperture radar satellite to be used for remote sensing.
18. Aditya-1 is a mission to the .................

A. Sun B. Mars C. Jupiter D. Moon

Answer: Option A
Explanation:
ISRO plans to carry out a mission to the Sun by the year 2019-20.The probe is named as Aditya-1 and will weigh about 400 kg. It is the First Indian based Solar Coronagraph to study solar Corona in visible and near IR bands.
19. ISRO starts landing tests for which mission?

A. ASTROSAT B. Chandrayaan-2 C. Chandrayaan-1 D. Mars Orbiter Mission

Answer: Option B
Explanation:
The Indian Space Research Organisation started a series of ground and aerial tests linked to the critical Moon landing of Chandrayaan-2, at its new site at Challakere in Chitradurga the district, 400 km from Bengaluru.
20. Which satellite is launched by China for mobile telecommunication?

A. Banxing – 2 B. Shijian-16 C. Tiantong-02 D. Tiantong-01

Answer: Option D
Explanation:
China has successfully launched the first satellite dubbed as The Tiantong-01 for mobile telecommunication. It was launched on-board of the Long March-3B carrier rocket from Xichang Satellite Launch Centre.

1. The advanced weather satellite Himawari-9 was launched by which country ?

A. India B. Russia C. China D. Japan

Answer: Option D
Explanation:
The first one, Himawari-8, was launched in October 2014. Himawari-9 is Japan’s ninth geostationary weather observatory since the first satellite in the Himawari, or sunflower, series launched in 1977.
2. Tianlian I-04 is the satellite belongs to which country?

A. Japan B. China C. USA D. Bangladesh

Answer: Option B
Explanation:
The satellite, Tianlian I-04, was launched on a Long March- 3C carrier rocket from the Xichang Satellite Launch Centre
3. An advanced weather satellites GOES-R was launched by which space agency?

A. NASA B. ISRO C. JAXA D. CNSA

Answer: Option A
Explanation:
NASA has successfully launched the A “next generation” US advanced weather satellites GOES-R from Cape Canaveral Air Force Station in Florida, US on November 20, 2016.
4. Which mission holds the Guinness World Record for the highest altitude fix of a GPS signal?

A. Lunar Atmosphere Dust Environment Explorer B. Gravity Recovery and Climate Experiment C. Magnetospheric Multiscale Mission D. Extreme Environment Mission Operations

Answer: Option C
Explanation:
NASA’s Magnetospheric Multiscale Mission (MMS) now holds the Guinness World Record for the highest altitude fix of a GPS signal. The MMS satellites, which are operating in a highly elliptical orbit around the Earth, has set the record at 43,500 miles above the surface.
5. China launched global carbon dioxide monitoring satellite __________to understand climate change

A. TanSat B. Spitzer C. SatCo D. Cartosat-2

Answer: Option A
Explanation:
China launched a global carbon dioxide monitoring satellite TanSat to understand climate change, hours after it lifted nearly a week-long red alert for the worst smog that engulfed about 40 cities in the country.
6. First fully-owned satellite ground station abroad opened in which country?

A. Russia B. Australia C. China D. USA

Answer: Option C
Explanation:
China opens 1st fully-owned satellite ground station abroad. China has launched its first fully- owned overseas satellite ground station near the North Pole which could enable Beijing to collect satellite data anywhere on the Earth at a speed it said was the fastest in the world.
7. India’s first LNG fuelled bus is introduced in which part of India?

A. Kerala B. Madhya Pradesh C. Haryana D. Karnataka

Answer: Option A
Explanation:
For the 1st time in the Country, an LNG fuelled bus has been launched by the Minister of Petroleum & Natural Gas, Shri Dharmendra Pradhan in the presence of Chief Minister of Kerala, Shri Pinarayi Vijayan at Thiruvananthapuram.
8. Which space agency launches ‘Space Garbage Truck’ Into Orbit to Clean Up Space Debris ?

A. NASA B. RFSA C. ESA D. JAXA

Answer: Option D
Explanation:
Japan Aerospace Exploration Agency (JAXA) recently launched into orbit a space junk collector to clean up space debris. Kounotori, which means stork in Japanese, blasted off from the southern Japanese island of Tanegashima on Dec. 9
9. Which Supercluster was found by astronomers in December 2016?

A. Virgo B. Oracle C. Vela D. Fornax

Answer: Option C
Explanation:
Astronomers have found one of the Universe’s biggest superclusters of galaxies near the Milky Way. The Vela supercluster, which had previously gone undetected as it was hidden by stars and dust in the Milky Way, is a huge mass that influenced the motion of our Galaxy.
10. World’s largest amphibious aircraft AG600 by which country ?

A. China B. Bangladesh C. Iran D. USA

Answer: Option A
Explanation:
The AVIC AG600, also known as TA-600, is a large amphibious flying boat that is being designed and built in China by the Aviation Industry Corporation of China
11. The rocket Kuaizhou-1A (KZ-1A) launched by which country?

A. China B. Japan C. Mongolia D. Russia

Answer: Option A
Explanation:
The rocket Kuaizhou-1A (KZ-1A) has sent three satellites into space in its first commercial mission.The rocket, carrying the satellite JL-1 and two CubeSats XY-S1 and Caton-1, blasted off from northwestern China’s Jiuquan Satellite Launch Center
12. Pinaka is a multiple rocket launcher inducted into ____________

A. Indian Army B. Indian Navy C. Indian Airforce D. All of these

Answer: Option A
Explanation:
Pinaka is a multiple rocket launcher produced in India and developed by the Defence Research and Development Organisation (DRDO) for the Indian Army. The system has a maximum range of 40 km for Mark-I and 65 km for Mark-II.
13. Which become India’s first warship to have ATM onboard ?

A. INS Chennai B. INS Vikramaditya C. INS Aditya D. INS Vikrant

Answer: Option B
Explanation:
India’s biggest aircraft carrier ship INS Vikramaditya is set to make history by the becoming the nation’s first warship to have an ATM onboard the vessel via satellite.
14. Which country has launched its first military communications satellite Kirameki-2 ?

A. South Korea B. China C. Japan D. North Korea

Answer: Option c
Explanation:
India’s biggest aircraft carrier ship INS Vikramaditya is set to make history by the becoming the nation’s first warship to have an ATM onboard the vessel via satellite.
Japan launched Kirameki-2 communications satellite, which will enable it to quickly share information about ballistic missiles launched by North Korea or videos of Japanese troops deployed overseas.
15. Surface-to-surface ballistic missile (SSM) ‘Ababeel’ is related with which country ?

A. Nepal B. India C. Pakistan D. Sri Lanka

Answer: Option C
Explanation:
Pakistan successfully conducted the first test flight of the ‘Ababeel’ surface-to-surface ballistic missile (SSM) capable of carrying a nuclear warhead up to 2,200 km.
16. ________________ was India’s first dedicated multi- wavelength space observatory

A. Swift B. Hubble C. Aerostat D. Astrosat

Answer: Option D
Explanation:
Astrosat is India’s first dedicated multi-wavelength space observatory. It was launched on a PSLV-XL on 28 September 2015.
17. INS____________ becomes India’s first ship to go green

A. Sandhayak B. Sutlej C. Darshak D. Sarvekshak

Answer: Option D
Explanation:
Indian Navy’s survey vessel INS Sarvekshak, based at the Southern Naval Command in Kochi became the first naval ship to go green by installing a solar power system on board
18. In February 2017, ISRO launched Cartosat-2 series satellite with how many satellites?

A. 101 B. 105 C. 102 D. 104

Answer: Option D
Explanation:
Indian Space Research Organisation’s (Isro) workhorse Polar Satellite Launch Vehicle (PSLV) carry a record 104 satellites in a single mission on 15 February from the space center at Sriharikota in Andhra Pradesh.
19. India Vetiver Network (INVN) has launched in which state?

A. Karnataka B. Maharashtra C. Haryana D. Tamil Nadu

Answer: Option D
Explanation:
India Vetiver Network (INVN) has been launched at Tamil Nadu Agricultural University. INVN is a not-for-profit scientific network to promote vetiver in India.
20. The weather satellite INSAT-3DR was launched inwhich year?

A. 2014 B. 2015 C. 2016 D. 2017

Answer: Option C
Explanation:
INSAT-3DR is an Indian weather satellite built by the Indian Space Research Organisation and operated by the Indian National Satellite System.

1. The Ship ‘Grand Old Lady’ ____________ has retired from service

A. INS Vikrant B. INS Kalvari C. INS Vikramaditya D. INS Viraat

Answer: Option D
Explanation:
INS Viraat -the ship, famously known as the ‘Grand Old Lady’, was with the British Royal Navy since 1959 before the Indian government bought it for Rs 6.5 crore in 1987.
2. INS Tillanchang was commissioned at _______________

A. Chennai B. Kochin C. Karwar D. Mumbai

Answer: Option C
Explanation:
INS Tillanchang, a Water Jet Fast Attack Craft (WJFAC) was commissioned into the Indian Navy by Vice Admiral Girish Luthra, the Flag Officer Commanding-in-Chief Western Naval Command, at Karwar .INS Tillanchang is the third ship of four follow-on WJFAC built by the Garden Reach Shipbuilders and Engineers (GRSE) Kolkata.
3. The EchoStar 23 communications satellite launched by which space agency?

A. SpaceX B. JAXA C. CNSA D. ESA

Answer: Option A
Explanation:
The SpaceX Falcon 9 rocket is launching from Kennedy Space Center’s Launch Complex 39A carrying the EchoStar 23 communications satellite for EchoStar Corporation.
4. The Vikram Sarabhai Space Centre is situated in which state of India ?

A. Odisha B. Kerala C. Andhra Pradesh D. Rajasthan

Answer: Option B
Explanation:
The Vikram Sarabhai Space Centre is a major space research centre of the Indian Space Research Organisation, focusing on rocket and space vehicles for India’s satellite programme. It is located in Thiruvananthapuram, in the Indian state of Kerala.
5. The GRAPES-3 experiment (or Gamma Ray Astronomy PeV EnergieS phase-3) located at ________

A. Leh B. Ooty C. Hanle D. Bangalore

Answer: Option B
Explanation:
The GRAPES-3 experiment (or Gamma Ray Astronomy PeV EnergieS phase-3) located at Ooty in India started as a collaboration of the Indian Tata Institute of Fundamental Research and the Japanese Osaka City University, and now also includes the Japanese Nagoya Women’s University.
6. The world’s largest artificial sun was set up by which country ?

A. USA B. Morocco C. Russia D. Germany

Answer: Option D
Explanation:
German scientists are switching on “the world’s largest artificial sun” in the hope that intense light sources can be used to generate climate-friendly fuel. The Synlight experiment in Jülich, about 19 miles west of Cologne, consists 149 souped-up film projector spotlights and produces light about 10,000 times the intensity of natural sunlight on Earth.
7. China has launched its first cargo spacecraft ___________ recently

A. Pujiang-1 B. TanSat C. Tianzhou-1 D. Tianhui 1B

Answer: Option C
Explanation:
China has launched its first cargo spacecraft, making further progress in its goal of establishing a permanently manned space station by 2022. The Tianzhou-1 cargo resupply spacecraft lifted off on Thursday evening on a Long March-7 Y2 rocket from the Wenchang Satellite Launch Centre in the southern island province of Hainan.
8. NASA has launched its super pressure balloon from which country ?

A. Australia B. New Zealand C. Finland D. Switzerland

Answer: Option B
Explanation:
NASA successfully launched its football-stadium-sized, heavy-lift super pressure balloon (SPB) from Wanaka, New Zealand.
9. Which Airlines become first to use new satellite-based airplane tracking system ?

A. Qatar Airways B. Malaysia Airlines C. Singapore Airlines D. Etihad Airways

Answer: Option B
Explanation:
Malaysia Airlines will be first to use new satellite-based airplane tracking system. The airline will use a soon-to-be-launched a satellite network to monitor its fleet in areas where there is currently no surveillance, including polar regions and remote areas of the oceans.
10. Shijian-13, first high-throughput communications satellite was launched by which country?

A. USA B. Russia C. China D. North Korea

Answer: Option C
Explanation:
Shijian-13, China’s first high-throughput communications satellite, was launched from Xichang Satellite Launch Center in southwest China’s Sichuan Province.
11. .................. is also known as law of Galileo

A. Newton’s Second Law B. Laws of motion C. Newton’s Third Law D. Newton’s First Law

Answer: Option D
Explanation:
First law – Everybody retains its state or state of motion until an external force is applied on it.
12. Which of the following is unit of Luminous intensity ?

A. Mole B. Candela C. Kelvin D. Kilogram

Answer: Option B
Explanation:
Luminous intensity is a measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle.
13. According to the law of conservation of energy which of the following is true ?

A. Energy can be created by many methods2. B. Enegy can’t be transformed into any other form C. Energy can’t be destroyed D. Both A and C

Answer: Option C
Explanation:
Law of conservation of energy : Energy can neither be created nor be destroyed but it can be transformed from one form to another form.
14. The pressure exerted anywhere at a point of cofined fluid is transmitted equally and undiminished in all directions throughout the liquid is known as

A. Pascal’s law B. Kepler’s law C. Newton’s law D. Stefan’s law

Answer: Option A
Explanation:
Pascal’s law is also known as principle of transmission of fluid-pressure.
15. The speed of the light is

A. 3×[latex]{10}^{6}[/latex]m/m B. 8×[latex]{10}^{8}[/latex]m/s C. 3×[latex]{10}^{8}[/latex]m/s D. 6×[latex]{10}^{3}[/latex]m/s

Answer: Option C
Explanation:
Light is a transverse wave.
16. Optical fibre following ................. to carry the information in the form of light

A. Law of scattering B. Refraction law C. Reflection law D. Total internal reflection

Answer: Option D
Explanation:
Total internal reflection occurs when a propagating wave strikes a medium boundary at an angle larger than a particular critical angle with respect to the normal to the surface.
17. Twinkling of stars is based upon.................................

A. Reflection B. Refraction C. Scateering D. Both Reflection and Refraction

Answer: Option B
Explanation:
Refraction is the bending of a wave when it enters a medium where its speed is different
18. Which of the following denotes Ohm’s law ?

A. I = VR B. R/I = V C. V = IR D. R = VI

Answer: Option C
Explanation:
Current is flowing through the conductor is direct proportional to the potential difference across its 2 ends.
19. The process of splitting of a heavy molecules into 2 or more lighter molecules is known as

A. Nuclear Fission B. Nuclear Fusion C. Nuclear Process D. Nuclear reaction

Answer: Option A
Explanation:
Fission – an atom splits into smaller parts, discovered by by German Otto Hahn.
20. Depth of the Ocean is measured by

A. Fathometer B. Mariner’s Compass C. Radar D. Tachometer

Answer: Option A
Explanation:
Fathometer uses sound waves to determine the depth of water.It unit is Fathom.

1. The Unit of sound is ....................

A. Intensity B. Hertz C. Decibel D. Frequency

Answer: Option C
Explanation:
Decibel(dB), unit for expressing the ratio between two amounts of electric or acoustic power or for measuring the relative loudness of sounds. 1 dB = 20 times the common logarithm of the ratio.
2. The sound waves or audible waves are lies in the range of ...........................

A. less than 20Hz B. 20Hz to 20000Hz C. Greater than 20000Hz D. 20000Hz

Answer: Option B
Explanation:
Sound waves or audible waves – 20Hz to 20000Hz These waves sensitive to human ear
3. Speed of sound is .......................... in solids and ........................ in gases

A. Minimum, Maximum B. Minimum, Minimum C. Maximum, Maximum D. Maximum, Minimum

Answer: Option D
Explanation:
minimum in gases
4. The infrasonic waves have the frequencies

A. less than 20Hz B. 20Hz to 20000Hz C. Greater than 20000Hz D. 20000Hz

Answer: Option A
Explanation:
Infrasonic waves – less than 20Hz These waves are produced by earth quakes.
5. The wavelength range of electromagnetic wave is .................................

A. [latex]{10}^{-3}[/latex] to [latex]{10}^{4}[/latex]m B. [latex]{10}^{-1}[/latex] to [latex]{10}^{2}[/latex] m C. [latex]{10}^{-2}[/latex] to [latex]{10}^{3}[/latex] m D. [latex]{10}^{-4}[/latex] to [latex]{10}^{4}[/latex] m

Answer: Option D
Explanation:
Ex of electromagnetic wave – Alpha rays, Gamma rays.
6. Frequency is defined as

A. The maximum time period B. Maximum displacement from mean position C. Time taken for 1 oscillation D. The no of oscillations in 1 seconds

Answer: Option D
Explanation:
Frequency is defined as the no of oscillations in 1 seconds
Frequency Unit – Hertz
F=1/T
7. The echo is not heared at the ............. due to absence of atmosphere

A. Moon B. Earth C. Mountains D. Ocean

Answer: Option A
Explanation:
The sound waves received after being reflected from some other place is called echo. The minimum distance between the observer and reflector should be 17m.
8. .............. waves are always characterized by particle the motion being perpendicular to wave motion.

A. Longitudinal B. Transverse C. Mechanical D. Electromagnetic waves

Answer: Option B
Explanation:
Transverse waves are always characterized by particle the motion being perpendicular to wave motion. Ex – Waves on string under tension or under surface water
9. The distance between consecutive trough or compression is known as

A. Amplitude B. Frequency C. Wavelength D. Time period

Answer: Option C
Explanation:
Distance between consecutive trough or compression is known as Wavelength.
Wavelength( λ) Unit – meter
10. The longitudinal waves having frequency greater than 20000Hz are called

A. Electromagnetic waves B. Sound Waves C. Audible waves D. Ultrasonic waves

Answer: Option D
Explanation:
Ultrasonic waves – greater than 20000Hz. Human ears can’t detect these waves
11. Who introduced the concept of inertia ?

A. Newton B. Pascal C. Galileo D. Aristotle

Answer: Option C
Explanation:
The term “inertia” is more properly understood as shorthand for “the principle of inertia” as described by Newton in his First Law of Motion: that an object not subject to any net external force moves at a constant velocity.
12. If the resultant of all the force acting on a body is ......................... then the body is said to be in equilibrium.

A. Zero B. Constant C. Maximum D. Minimum

Answer: Option A
Explanation:
Equilibrium results from the cancellation of forces acting on an object.
13. Rocket works on the principle of .................................

A. Circular motion B. Centre of gravity C. Equilibrium D. Conservation of momentum

Answer: Option D
Explanation:
Conservation of momentum is a fundamental law of physics which states that the momentum of a system is constant if there are no external forces acting on the system. It is embodied in Newton’s first law (the law of inertia).
14. If the body is at rest then the equilibrium is called as .....................

A. Dynamic B. Neutral equilibrium C. Static D. Either Static or Dynamic

Answer: Option C
Explanation:
When forces acting on an object which is at rest are balanced, then we say that the object is in a state of static equilibrium. The resultant of these forces equals zero. That is, the vector sum of the forces adds to zero.
15. Energy is defined as capacity of doing work.Its unit is ................

A. Kilogram B. Kelvin C. Joule D. Watt

Answer: Option C
Explanation:
The joule symbol J, is a derived unit of energy in the International System of Units. It is equal to the energy transferred (or work done) to an object when a force of one newton acts on that object in the direction of its motion through a distance of one metre (1 newton metre or N).
16. A bullet fired from a gun can pierce a target due to its ..............................

A. Kinetic Energy B. Law of conservation Energy C. Potential Energy D. Gravitational Force

Answer: Option A
Explanation:
Kinetic energy is the energy possessed by a body by virtue of its motion
KE = 1⁄2(m[latex]{V}^{2}[/latex])
17. ........................... is the energy possessed by a body by virtue of its position

A. Negative Energy B. Potential Energy C. Positive Energy D. Kinetic Energy

Answer: Option B
Explanation:
Potential Energy is the energy possessed by a body by virtue of its position. Ex-The potential energy of water in dams used to run turbines in order to produce electricity.
18. The sum of all kinds of energies in an isolated system remains ................. at all times

A. Minimum B. Maximum C. Zero D. Constant

Answer: Option D
Explanation:
According to the law of conservation of energy the sum of all kinds of energies in an isolated system remains constant at all the time.
19. In a heat engine .................... energy changes into ...................... energy

A. Mechanical, electrical B. Heat, Mechanical C. Electrical, Heat D. Heat, Electrical

Answer: Option B
Explanation:
In a heat engine Heat energy changes into Mechanical energy.
20. In electric motor ....................... energy changes into ...................... energy

A. Mechanical, electrical B. Heat, Mechanical C. Electrical, Mechanical D. Heat, Electrical

Answer: Option C
Explanation:
In electric motor electrical energy changes into mechanical energy.

1. The normal temperature of the human body is ......................

A. [latex]{73}^{0}[/latex]C B. [latex]{300}^{0}[/latex]C C. [latex]{370}^{0}[/latex]C D. [latex]{1000}^{0}[/latex]C

Answer: Option C
Explanation:
Normal body temperature as an oral temperature of [latex]{98.6}^{0}[/latex]F ([latex]{370}^{0}[/latex]C). This is an average of normal body temperatures.
2. The density of water is maximum at .............................

A. [latex]{7}^{0}[/latex]C B. [latex]{–3.4}^{0}[/latex]C C. [latex]{4}^{0}[/latex]C D. [latex]{2}^{0}[/latex]C

Answer: Option B
Explanation:
The density of a substance is defined as the ratio of its mass to its volume Unit = kg/[latex]{m}^{3}[/latex]
3. What is the SI unit of pressure?

A. N/s[latex]{m}^{2}[/latex] B. N/[latex]{m}^{2}[/latex] C. kg/[latex]{m}^{2}[/latex] D. N/[latex]{m}^{3}[/latex]

Answer: Option B
Explanation:
Pressure is defined as the force acting normally on a unit area of the surface Unit = N/[latex]{m}^{2}[/latex] or Pascal. Atmospheric pressure is measured by Barometer.
4. Slow fall in barometric reading is the indication of ..........

A. Rain B. Storm C. Clear Weather D. Normal Weather

Answer: Option A
Explanation:
The slow fall in barometric reading is the indication of rain The slow rise in barometric reading is the indication of clear weather. The sudden fall in barometric reading is the indication of storm.
5. The angle of contact is ............. for pure water and clean glass

A. [latex]{60}^{0}[/latex] B. [latex]{45}^{0}[/latex] C. [latex]{90}^{0}[/latex] D. [latex]{0}^{0}[/latex]

Answer: Option D
Explanation:
The angle of contact is [latex]{0}^{0}[/latex] for pure water and clean gas. It is [latex]{90}^{0}[/latex] for silver, 80 for ordinary water and 1350 for mercury.
6. Which does not require the medium for their propagation?

A. Electromagnetic waves B. Transverse Waves C. Longitudinal Waves D. Mechanical Waves

Answer: Option A
Explanation:
Electromagnetic waves do not require medium for their propagation.
Ex – Cathode rays, Alpha and Beta rays
7. Which require the medium for their propagation?

A. Electromagnetic waves B. Sound waves C. Mechanical Waves D. Both A and B

Answer: Option D
Explanation:
Mechanical Waves require the medium for their propagation. These are 2 types. They are Longitudinal and Transverse waves.
8. The speed of Supersonic wave is measured in ......................

A. Avogadro Number B. Energy C. Mach Number D. Wavelength

Answer: Option C
Explanation:
Mach number is the ratio of the speed of source to the speed of sound
Mach number >1- Supersonic
Mach number >5- Hypersonic
Mach number <1 – Body is moving with supersonic
9. Pyrometer can’t measure the temperature below .....................

A. [latex]{800}^{0}[/latex]C B. [latex]{500}^{0}[/latex]C C. [latex]{1000}^{0}[/latex]C D. [latex]{750}^{0}[/latex]C

Answer: Option A
Explanation:
Pyrometer measure the temperature of a body by measuring the radiation emitted by the body. It can’t measure the temperature below [latex]{800}^{0}[/latex]C.
10. The freezing point of Mercury is...............................

A. [latex]{-210}^{0}[/latex]C B. [latex]{-390}^{0}[/latex]C C. [latex]{-190}^{0}[/latex]C D. [latex]{390}^{0}[/latex]C

Answer: Option B
Explanation:
The freezing point of Mercury is 390C.To measure thetemperature below -390C alcohol thermometer is used. The freezing point of alcohol is [latex]{-114}^{0}[/latex]C
11. All planets move around the sun in elliptical orbits having the sun at one foci of the orbit is called _____

A. Doppler’s effect B. Pascal’s law C. Kepler’s law D. Hooke’s law

Answer: Option C
Explanation:
All planets move around the sun in elliptical orbits having the sun at one foci of the orbit is called – Kepler’s law
12. The earth rotates on its axis from .......................

A. North to South B. West to east C. East to west D. South to North

Answer: Option B
Explanation:
The earth rotates on its axis from west to east. This rotation makes the sun and the stars appear to be moving across from East to West.
13. Escape velocity is .............. times the orbital velocity

A. 2 B. [latex]\sqrt{3}[/latex] C. 1 D. [latex]\sqrt{2}[/latex]

Answer: Option D
Explanation:
Escape velocity is Escape velocity is.[latex]/sqrt{2}[/latex] times the orbital velocity times the orbital velocity.Escape velocity is the minimum speed needed for an object to “break free” from the gravitational attraction of a massive body. The escape velocity from Earth is about 40,270 km/h
14. If the strain is longitudinal then the modulus of elasticity is called,...............................

A. Bulk Modulus B. Modulus of Rigidity C. Young’s modulus D. Density

Answer: Option C
Explanation:
Young’s modulus, which is also known as the elastic modulus is a mechanical property of linear elastic solid materials. It defines the relationship between stress (force per unit area) and strain (proportional deformation) in a material.
15. The amount of heat given to the system is used up in 2 ways are..............................

A. The second law of Thermodynamics B. Zeroth law of Thermodynamics C. Third law of Thermodynamics D. First law of Thermodynamics

Answer: Option B
Explanation:
First law of Thermodynamics – the amount of heat given to the system is used up in 2 ways, first to increase the internal energy and second to do the external work
16. Mercury has ....................... Specific heat

A. Low B. High C. Variable D. Constant

Answer: Option A
Explanation:
Mercury has low Specific heat. The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius.
17. The ...................... law of thermodynamics is the outcome of human experience under which heat energy can be converted

A. Second law of Thermodynamics B. Zeroth law of Thermodynamics C. Third law of Thermodynamics D. First law of Thermodynamics

Answer: Option A
Explanation:
The Second Law of Thermodynamics is the outcome of human experience under which heat energy can be converted into mechanical energy
18. Linear expansion mean ..................

A. Expansion in Volume B. Expansion in Area C. Expansion in length D. Expansion in Width

Answer: Option C
Explanation:
Linear expansion means change in one dimension (length) as opposed to change in volume (volumetric expansion).
19. Expansion in area is called .....................

A. Cubical Expansion B. Linear Expansion C. Superficial Expansion D. Artificial Expansion

Answer: Option C
Explanation:
Expansion in area is called Superficial Expansion The area thermal expansion coefficient relates the change in a material’s area dimensions to a change in temperature.
20. A steel block with a volume of ................might expand to 1.002 cubic meters when the temperature is raised by 50 K.

A. 1 cubic meter B. 1 meter C. 1 centimeter D. 1 millimeter

Answer: Option A
Explanation:
The volume of a material changes by some fixed fractional amount. For example, a steel block with a volume of 1 cubic meter might expand to 1.002 cubic meters when the temperature is raised by 50 K.