Nuclear Structure – Online MCQs – Physics 10th

1. If the radioactive source is placed inside the electric field, this radiation does not change its direction.

2. Half-life of a radioactive element depends upon

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

4. To check thyroid function, a patient drinks a liquid containing radio:

5. α-particles has a charge of:

6. A powder contains 100mg of a radioactive material that emits α-particles. The half-life of the isotope is five days. The mass of isotope that remains after ten days will be:

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

8. A radioactive element emits a particle from the nucleus of one of its atoms. The particle comprises two protons and two neutrons. The name of this process is called:

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

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

11. A nuclear reaction is given by:

12. A radioactive decay can be represented as shown. ₉₁Pa²³³ → ₉₂U²³³ + . . . . The emitted particle is Wan

13. β particles have:

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

15. When atoms lose or gain electrons, they become:

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

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

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

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