Practice test

Atomic and nuclear physics - Test Set 1

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    The electromagnetic radiation emitted during radioactive disintegration is:
    1. X-rays
    2. γ-rays
    3. Ultraviolet rays
    4. Infrared rays
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  2. Question 2

    The reaction that occurs in nuclear reactors is:
    1. Nuclear fusion
    2. Spallation
    3. Nuclear fission
    4. Nuclear isomerisation
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  3. Question 3

    Which is a good nuclear fuel?
    1. Uranium-238
    2. Plutonium-239
    3. Neptunium-239
    4. Thorium-236
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  4. Question 4

    The nuclear reaction in a reactor is:
    1. Fission
    2. Fusion
    3. Spallation
    4. Neutron absorption
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  5. Question 5

    Which ray is most dangerous?
    1. Alpha ray
    2. Beta ray
    3. Gamma ray
    4. X-ray
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  6. Question 6

    The Sun’s energy is due to:
    1. Nuclear fusion
    2. Nuclear fission
    3. Radioactive decay
    4. Photoelectric effect
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  7. Question 7

    Material used for nuclear radiation safety:
    1. Copper
    2. Platinum
    3. Iron
    4. Lead
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  8. Question 8

    All electromagnetic waves have the same:
    1. Frequency
    2. Amplitude
    3. Wavelength in vacuum
    4. Speed in vacuum
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  9. Question 9

    Solar cooker works like a:
    1. Bolometer
    2. Pyrometer
    3. Greenhouse
    4. Solar PV cell
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  10. Question 10

    The radiant energy from the sun is due to:
    1. Chemical reaction
    2. Interference
    3. Nuclear fusion
    4. Polarisation
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  11. Question 11

    Solar energy is produced by the process of:
    1. Fusion
    2. Fission
    3. Explosion
    4. None of these
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  12. Question 12

    X-RAY are:
    1. Electromagnetic wave
    2. Electromagnetic wave of short wavelength
    3. Electromagnetic wave of long wavelength
    4. None
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  13. Question 13

    Consider the following statements
    I. Nuclear forces are spin dependent.
    II. The fourth state of matter is known as plasma.
    III. Nuclear forces are attractive or repulsive depending upon separation between nucleons.
    IV. The main source of solar energy is nuclear fusion.
    Which of the statements given above are correct?
    1. I, II and III
    2. II, III and IV
    3. I, II and IV
    4. All of these
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  14. Question 14

    Which of the following elements is not radioactive?
    1. Zirconium
    2. Uranium
    3. Radium
    4. Plutonium
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  15. Question 15

    The phenomenon of radioactivity was discovered by:
    1. Marie Curie
    2. Pierre Curie
    3. Henri Becquerel
    4. JJ Thomson
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  16. Question 16

    The penetrating powers of α,β and γ-radiations, in decreasing order are:
    1. α,β,γ
    2. γ,β,α
    3. β,α,γ
    4. γ,α,β
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  17. Question 17

    The material used for safety from nuclear radiation is:
    1. Copper
    2. Platinum
    3. Iron
    4. Lead
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  18. Question 18

    The unit of radioactivity is:
    1. Angstrom
    2. Candela
    3. Fermi
    4. Curie
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  19. Question 19

    Curie is an unit of :
    1. Radioactivity
    2. Energy of gamma rays
    3. Intensity of gamma rays
    4. Work function
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  20. Question 20

    Alpha particle is the nucleus of an atom of:
    1. Hydrogen
    2. Helium
    3. Oxygen
    4. Lithium
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