MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Who is the inventor of the laws of gravity? |
| A. | edison |
| B. | newton |
| C. | faraday |
| D. | none of these |
| Answer» C. faraday | |
| 2. |
Who invented X-ray? |
| A. | hopkins |
| B. | roentgen |
| C. | Marconi |
| D. | morse |
| Answer» C. Marconi | |
| 3. |
What did the Wright Brothers invent? |
| A. | binoculars |
| B. | radio |
| C. | Satellite |
| D. | Aeroplane |
| Answer» E. | |
| 4. |
Discovered Cosmic Rays? |
| A. | Copernicus |
| B. | by Bruno Rossi |
| C. | by Edwin Hubble |
| D. | by Victor Hayes |
| Answer» E. | |
| 5. |
Who propounded the theory of black holes? |
| A. | CB Raman has |
| B. | H.J. Bhabha |
| C. | s. Chandrashekhar |
| D. | H. Khurana |
| Answer» D. H. Khurana | |
| 6. |
The branch of physics that studies celestial objects is called? |
| A. | astronomy |
| B. | Astronautics |
| C. | astrology |
| D. | astrophysics |
| Answer» C. astrology | |
| 7. |
What new has been given to Pluto by the Minor Planet Center of the International Astronomical Union (IAU) in Paris? |
| A. | 134340 |
| B. | 238380 |
| C. | iris |
| D. | Knicks |
| Answer» D. Knicks | |
| 8. |
Astronauts see the color of the sky? |
| A. | Blue |
| B. | Red |
| C. | Black |
| D. | White |
| Answer» D. White | |
| 9. |
In which year did man first set foot on the moon? |
| A. | 1972 AD |
| B. | 1969 AD |
| C. | 1965 AD |
| D. | 1963 AD. |
| Answer» C. 1965 AD | |
| 10. |
What is known as 'Red Planet'? |
| A. | Venus |
| B. | saturn |
| C. | wed |
| D. | Mars |
| Answer» E. | |
| 11. |
How long does the Earth take to complete one revolution around the Sun? |
| A. | 360 days |
| B. | 365.25 days |
| C. | 364 days |
| D. | 24 hour |
| Answer» C. 364 days | |
| 12. |
Methane in whose atmosphere is it? |
| A. | moon |
| B. | Sun |
| C. | Jupiter |
| D. | Mars |
| Answer» D. Mars | |
| 13. |
The planet closest to the Sun is? |
| A. | wed |
| B. | saturn |
| C. | Mars |
| D. | saturn |
| Answer» B. saturn | |
| 14. |
Halley's Comet revolves around the Sun. |
| A. | in 40 years |
| B. | in 46 years |
| C. | in 60 years |
| D. | in 76 years |
| Answer» E. | |
| 15. |
Which one of the following stars is closest to Earth? |
| A. | Pole Star |
| B. | comet |
| C. | Sun |
| D. | fascinated |
| Answer» D. fascinated | |
| 16. |
The smallest planet in the solar system is? |
| A. | wed |
| B. | Venus |
| C. | Earth |
| D. | Mars |
| Answer» B. Venus | |
| 17. |
Asteroid belt in the solar system is such a region, which is present between them? |
| A. | Venus and Mars |
| B. | Mars and Jupiter |
| C. | Venus and Earth |
| D. | Jupiter and Arun |
| Answer» C. Venus and Earth | |
| 18. |
Which of the following planet has less density than water and will float when put in water? |
| A. | wed |
| B. | Venus |
| C. | Mars |
| D. | saturn |
| Answer» E. | |
| 19. |
The surface temperature of the Sun is approximately? |
| A. | 5800°C |
| B. | 1000°C |
| C. | 2000°C |
| D. | 4000°C |
| Answer» B. 1000°C | |
| 20. |
The largest planet in the solar system is? |
| A. | Pluto |
| B. | saturn |
| C. | Mars |
| D. | Jupiter |
| Answer» E. | |
| 21. |
Discovered Neptune? |
| A. | by galley |
| B. | by galileo |
| C. | Kepler |
| D. | Newton |
| Answer» B. by galileo | |
| 22. |
Which planet makes one revolution around the Sun in 88 days? |
| A. | Venus |
| B. | wed |
| C. | Mars |
| D. | saturn |
| Answer» C. Mars | |
| 23. |
Which of the following planets is known as the Morning Star? |
| A. | wed |
| B. | Venus |
| C. | Mars |
| D. | saturn |
| Answer» C. Mars | |
| 24. |
What is the source of energy of stars and sun? |
| A. | nuclear fusion |
| B. | Nuclear fission |
| C. | Electromagnetic induction |
| D. | electric force |
| Answer» B. Nuclear fission | |
| 25. |
Which is the closest star to the Sun? |
| A. | beta centori |
| B. | gamma centori |
| C. | alpha centauri |
| D. | Proxima Centauri |
| Answer» E. | |
| 26. |
Who propounded the law of motion of the planets? |
| A. | Newton |
| B. | by Kepler |
| C. | by galileo |
| D. | Copernicus |
| Answer» C. by galileo | |
| 27. |
Which of the following planets has the most satellites? |
| A. | Jupiter |
| B. | Mars |
| C. | saturn |
| D. | Venus |
| Answer» B. Mars | |
| 28. |
The instrument used to measure the diameter of stars and galaxies is |
| A. | photometer |
| B. | viscometer |
| C. | barometer |
| D. | Interferometer |
| Answer» E. | |
| 29. |
he Earth and other planets revolve around the Sun.Who first proved this? |
| A. | Aristotle |
| B. | by galileo |
| C. | Copernicus |
| D. | by Edwin Hubble |
| Answer» D. by Edwin Hubble | |
| 30. |
Two planets that have no satellites? |
| A. | Earth and Jupiter |
| B. | Mercury and Venus |
| C. | Mercury and Mars |
| D. | Venus and Mars |
| Answer» C. Mercury and Mars | |
| 31. |
Which element is found in the largest amount in the universe? |
| A. | hydrogen |
| B. | nitrogen |
| C. | helium |
| D. | oxygen |
| Answer» B. nitrogen | |
| 32. |
Who among the following takes a three dimensional picture? |
| A. | holography |
| B. | photography |
| C. | Photochromatic |
| D. | radiography |
| Answer» B. photography | |
| 33. |
What is the conclusion of the mass-energy relationship? |
| A. | Quantum theory |
| B. | general theory of relativity |
| C. | field theory of energy |
| D. | special theory of relativity |
| Answer» E. | |
| 34. |
How is energy produced in nuclear reactors? |
| A. | by controlled fusion |
| B. | by uncontrolled fusion |
| C. | By controlled fragmentation |
| D. | By uncontrolled fragmentation |
| Answer» D. By uncontrolled fragmentation | |
| 35. |
A diode is a device that transmits current? |
| A. | allows to flow in one direction |
| B. | allows it to flow in both directions |
| C. | does not allow flow in any direction |
| D. | none of the above |
| Answer» B. allows it to flow in both directions | |
| 36. |
The universe is expanding. Who first gave this proof? |
| A. | galileo |
| B. | newton |
| C. | Copernicus |
| D. | Edwin Hubble |
| Answer» E. | |
| 37. |
The process of breaking a heavy nucleus into two lighter nuclei is called? |
| A. | Nuclear fission |
| B. | mass loss |
| C. | nuclear fusion |
| D. | Radioactive disintegration |
| Answer» D. Radioactive disintegration | |
| 38. |
Where is the atomic pile used? |
| A. | in nuclear acceleration |
| B. | In the operation of thermal nuclear fusion |
| C. | in the operation of nuclear fission |
| D. | in the production of x rays |
| Answer» D. in the production of x rays | |
| 39. |
What is radar used for? |
| A. | to detect solar radiation |
| B. | to locate and guide ships, aircraft, etc. |
| C. | to see the planets |
| D. | To measure the intensity of earthquakes |
| Answer» C. to see the planets | |
| 40. |
How is heavy water (D,O) used in a nuclear reactor? |
| A. | diluent |
| B. | coolant |
| C. | preservative |
| D. | controller |
| Answer» B. coolant | |
| 41. |
If two lighter nuclei combine to form a heavier nucleus, then this process is called? |
| A. | Nuclear fission |
| B. | nuclear fusion |
| C. | photoelectric effect |
| D. | chemical reaction |
| Answer» B. nuclear fusion | |
| 42. |
Where was the electron discovered? |
| A. | rutherford |
| B. | galileo |
| C. | James Watt |
| D. | thomson |
| Answer» E. | |
| 43. |
Atoms having same atomic number but different atomic mass are called? |
| A. | isocratic |
| B. | isotopes |
| C. | isobars |
| D. | none of these |
| Answer» C. isobars | |
| 44. |
Cobalt-60 is commonly used in radiation therapy because it emits? |
| A. | beta rays |
| B. | gamma rays |
| C. | x rays |
| D. | alpha rays |
| Answer» C. x rays | |
| 45. |
Curie is the name of whose unit? |
| A. | radioactive purity |
| B. | temperature because it emits |
| C. | heat |
| D. | energy |
| Answer» B. temperature because it emits | |
| 46. |
Which of the following is used as a moderator in a nuclear reactor? |
| A. | to thorium |
| B. | Of graphite |
| C. | Of radium |
| D. | Of ordinary water |
| Answer» C. Of radium | |
| 47. |
emits radioactive material? |
| A. | alpha rays |
| B. | beta rays |
| C. | gamma rays |
| D. | all of the above |
| Answer» E. | |
| 48. |
was the neutron discovered? |
| A. | by chadwick |
| B. | by rutherford |
| C. | by thomson |
| D. | Newton |
| Answer» B. by rutherford | |
| 49. |
carries electrons? |
| A. | one unit negative charge |
| B. | one unit charge |
| C. | two units negative charge |
| D. | two unit charge |
| Answer» B. one unit charge | |
| 50. |
Find the number of protons in the nucleus of a hydrogen atom? |
| A. | Zero |
| B. | One |
| C. | three |
| D. | Five |
| Answer» C. three | |