Nuclear Structure – Online MCQs – Physics 10th

1. β particles are ____________ than / to a particles.

2. ₁H² + ₁H³ → ₂He⁴ + ₀n¹ + energy. This reaction is an example of:

3. The radio active source is placed inside the electric field, α-particles are deflected towards a:

4. For the diagnosis of brain tumors, the ___________ isotope is used.

5. In the core of the sun hydrogen is being converted into helium. It takes ________ hydrogen atoms to fuse into each helium atom.

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

7. α-particles has a charge of:

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

9. Ions are:

10. β particles have:

11. A nuclear reaction is given by:

12. A radioactive decay can be represented as shown. ₆C¹⁴ → ₇N¹⁴ + . . . . The emitted particle is a/an:

13. The severe health hazards caused by radioactive emissions is/are:

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

15. In γ ray emission from a nucleus:

16. In radiosurgery, a strong gamma emitter __________ is used.

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

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

19. A scientist experiments using a seated source that emits β-particles. The range of the β-particles in the air is about 30cm. The precaution that is the most effective to protect the scientist from radiation is:

20. The rate of radioactive decay is proportional to the: