Top Nuclear Physics MCQs for SSC MTS 2025 Exam

Top Nuclear Physics MCQs for SSC MTS 2025 Exam: Preparing for SSC MTS 2025 demands a solid understanding of core science subjects, especially nuclear physics. To support your success in the General Awareness section, we’ve put together a set of key multiple-choice questions (MCQs) covering topics like nuclear reactions, atomic structure, and major scientific discoveries.

These Top Nuclear Physics MCQs for SSC MTS 2025 Exam cover frequently asked topics in previous exams and are tailored for the upcoming SSC MTS 2025.

Top Nuclear Physics MCQs for SSC MTS 2025 Exam

1. What percentage of energy is converted into power during nuclear fission?
a) 10%
b) 0.01%
c) 0.1%
d) 1%

2. Which material is used to protect from nuclear radiation?
a) Copper
b) Lead
c) Platinum
d) Iron

3. In which unit is atomic mass expressed?
a) Tesla
b) Newton
c) Angstrom
d) Fermi

4. The working principle of solar cells is based on which of the following?
a) Pyrometer
b) Galvanometer
c) Greenhouse
d) Bolometer

5. Which among the following is the best nuclear fuel?
a) Plutonium-239
b) Thorium-236
c) Uranium-238
d) Neptunium-239

6. In nuclear fusion, the organized reaction is called—
a) Nuclear combination (fusion)
b) Nuclear division (fission)
c) Spallation
d) Nuclear collective building

7. Who invented the technology of ‘Underground Nuclear Explosion’?
a) Dr. Homi J. Bhabha
b) Dr. Vikram Sarabhai
c) Dr. Raja Ramanna
d) Dr. P.K. Iyengar

8. Who invented the hydrogen bomb?
a) Hermann von Helmholtz
b) J. Robert Oppenheimer
c) Edward Teller
d) Samuel Cohen

9. Who made the atom bomb?
a) Hermann von Helmholtz
b) J. Robert Oppenheimer
c) Edward Teller
d) Samuel Cohen

10. Which element determines the future of India’s nuclear power program?
a) Thorium
b) Uranium
c) Plutonium
d) Radium

11. Which natural radioactive particle will be selected to separate a neutron from the nucleus?
a) Alpha ray
b) Beta ray
c) Gamma ray
d) Microquasar

12. Which isotope can normally undergo nuclear fission?
a) ²³⁸U
b) ²³⁵U
c) ²³⁹NP
d) ⁴He

13. In nuclear fusion, cadmium rods are used for which purpose?
a) To increase the speed of neutrons
b) To reduce the speed of neutrons
c) To absorb neutrons
d) To produce neutrons

14. In 1945, which fissile material was used in the bomb dropped on Nagasaki?
a) Uranium
b) Plutonium
c) Neptunium
d) None

15. In nuclear fusion, which isotope is used as fuel?
a) ²³⁵U
b) ²³⁸U
c) ²³³U
d) ²³⁹U

16. In nuclear fusion, which element among the following is used as moderator?
a) Plutonium
b) Iron
c) Graphite
d) Platinum

17. In which state of India did the first nuclear explosion incident occur?
a) Jammu & Kashmir
b) Nagaland
c) Manipur
d) Rajasthan

18. What is the function of moderator in nuclear fusion?
a) To increase neutron speed
b) To produce neutrons
c) To control neutron speed
d) To absorb neutrons

19. When two neutrons are divided from one ²³⁸U nucleus, what will be the result?
a) Tetron
b) Isotope
c) Isomer
d) Isobar

20. In the equation ³₁T + ³₂He + x → X, X is—
a) Electron
b) Deuteron
c) Neutron
d) Positron

21. If a proton moves at the speed of light, its mass will—
a) Remain unchanged
b) Increase but will be limited
c) Infinite
d) Zero

22. What is the difference between nuclear fusion and atomic bomb?
a) In nuclear fusion, pure fission reaction occurs, but not in atomic bomb.
b) Nuclear fusion’s pure fission reaction is controlled.
c) Nuclear fusion’s pure fission reaction is uncontrolled.
d) In atomic bombs, no pure fission reaction occurs, but in nuclear fusion, it does.

23. In nuclear fusion, what is heavy water used as?
a) Fuel
b) Coolant
c) Moderator
d) Atomic Smash

24. Which of the following is used as a nuclear fuel?
a) Coal
b) Uranium
c) Radium
d) Diesel

25. What is the code name of the atomic bomb dropped on Hiroshima?
a) Fat Man
b) Big Boy
c) Little Boy
d) Thin Boy

26. What is the function of heavy water in nuclear reactor?
a) To cool the reactor
b) To stop nuclear reaction
c) To reduce neutron speed
d) To increase neutron speed

27. What is graphite used for in nuclear fusion?
a) As lubricant
b) As flux rod
c) As control rod
d) For coating

28. What is the source of sun’s energy?
a) Nuclear fusion
b) Nuclear fission
c) Loss of matter
d) Light-heat reaction

29. How is the sun’s energy produced?
a) Fusion of hydrogen and helium atoms
b) Fission of hydrogen and helium atoms
c) Fission reaction of helium atoms
d) Chemical reaction of helium atoms

30. In nuclear fusion, which water is used and called?
a) Ordinary water
b) Heavy water
c) Nuclear water
d) Compressed water

Answers to the Top Nuclear Physics MCQs for SSC MTS 2025 Exam

1. b) 0.01%
2. b) Lead
3. b) Newton
4. a) Pyrometer
5. a) Plutonium-239
6. a) Nuclear combination (fusion)
7. a) Dr. Homi J. Bhabha
8. c) Edward Teller
9. a) Hermann von Helmholtz
10. a) Thorium
11. a) Alpha ray
12. b) ²³⁵U
13. c) To absorb neutrons
14. b) Plutonium
15. a) ²³⁵U
16. c) Graphite
17. d) Rajasthan
18. c) To control neutron speed
19. d) Isobar
20. c) Neutron
21. b) Increase but will be limited
22. b) Nuclear fusion’s pure fission reaction is controlled
23. c) Moderator
24. b) Uranium
25. c) Little Boy
26. c) To reduce neutron speed
27. c) As control rod
28. a) Nuclear fusion
29. a) Fusion of hydrogen and helium atoms
30. b) Heavy water

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