Nuclear Structure – Online MCQs – Physics 10th

1. γ-rays are deflected by:

2. Isotopes below the line of stability:

3. High penetrating power of gamma rays is due to their:

4. A radioactive nuclide emits a β-particle. The atomic number (proton number) of the nucleus:

5. The type of radiation that travels in a straight line across an electric field is a/an:

6. The number of neutrons in the uranium nucleus will be:

7. α particle is a :

8. In alpha decay, the proton number or atomic number, Z of the parent nuclide reduces by _________ while its atomic mass or nucleon number, A, decreases by __________.

9. Compared with α-particles and β-particles, γ-rays:

10. Radioactivity is:

11. A nuclear reaction is given by:

12. In the graph of unstable nuclei, stable isotopes lie:

13. A radioactive decay can be represented as shown. ₈₈Ra²²⁶ → ₈₆Rn²²² + . . . . The emitted particle is a/an:

14. The decay for these emissions increases the number of neutrons.

15. During nuclear fusion of hydrogen into helium:

16. Radioactive materials should be handled carefully. Which safety measure does not reduce the risk of using radioactive material?

17. Half-life of a radioactive element depends upon

18. A particle having the mass of an electron and the charge of a proton is called a:

19. It is the most dangerous of all other radioactive radiations.

20. Ions are: