CBSE Physics Nuclear Physics Test Online Question Answer Mcqs
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CBSE Physics Nuclear Physics Test Online

Test Name Atomic and Nuclear Physics Test
Subject CBSE Physics
Test Type MCQs
Total Question 25
Total Marks 50
Total Time 20 Minutes
Test Help For
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Central Board for Secondary Education (CBSE) in India arrangements syllabus classes subjects their official results of all basis of examinations. Science subjects build on student learning from the foundation. Physics chapter Atomic and Nuclear Physics test and improve your knowledge multiple choice exams you can take online.

CBSE Physics Nuclear Physics Test Online


1. In the nucleus of 11Na23, the number of protons, neutrons and electrons are ?

Question 1 of 25

2. The constituents of atomic nuclei are believed to be ?

Question 2 of 25

3. An element A decays into element C by a two step process

A → B + 2He4

B → C + 2e-

Then ?

Question 3 of 25

4. The ratio of the radii of the nuclei 13Al27 and 52Te125 is approximately ?

Question 4 of 25

5. A radioactive sample with  half-life of 1 month has teh label : 'Activity = 2 microcurie on 1-8-1991'. What would be its activity two months earlier ?

Question 5 of 25

6. If the nuclear force between two protons, two neutrons and between proton and neutron is denoted by Fpp, Fnn and Fpn respectively, then ?

Question 6 of 25

7. The average binding energy of a nucleon inside an atomic nucleus is about ?

Question 7 of 25

8. A radioactive element has half-life period 800 yr. After 6400 yr what amount will remain ?

Question 8 of 25

9. Heavy water is used as a moderator in a nuclear reactor. The function of the moderator is ?

Question 9 of 25

10. Energy released in the fission of a single 92U235 nucleus is 200 MeV. The fission rate of a 92U235 filled reactor operating at a power level of 5 W is ?

Question 10 of 25

11. Curie is a unit of ?

Question 11 of 25

12. If the binding energy per nucleon in 3Li7 and 2He4 nuclei are respectively 5.60 MeV and 7.06 MeV, then the energy of proton  in the reaction 3Li7 + P 2 2He4 is ?

Question 12 of 25

13. The binding energy per nucleon is maximum in case of ?

Question 13 of 25

14. The half-life of radium is 1600 yr. The fraction of a sample of radium that would remain after 6400 yr ?

Question 14 of 25

15. What is the respective number of α and β particle emitted in the following radioactive decay

200X90 168Y80 ?

Question 15 of 25

16. The mass density of a nucleus varies with mass number A as ?

Question 16 of 25

17. In a given reaction

zXA  → z+1 YAz-1 KA-4z-1 KA-4

Radioactive radiations are emitted in the sequence of ?

Question 17 of 25

18. The nuclei 6C13 and, N14 can be described as ?

Question 18 of 25

19. The nucleus 48Cd115, after two successive β-decay will give ?

Question 19 of 25

20. Which of the following statements is true fro nuclear forces ?

Question 20 of 25

21. The nucleus 6C12 absorbs an energetic newton and emits a particle (β). The resulting nucleus is ?

Question 21 of 25

22. The energy equivalent of one atomic mass unit is ?

Question 22 of 25

23. Solar energy is due to ?

Question 23 of 25

24. The mass number of He is 4 and that for sulphur is 32. The radius of sulphur nuclei is larger than that of helium by ?

Question 24 of 25

25. What is the radius of iodine atom ( Atomic No. 53, Mass No. 126) ?

Question 25 of 25


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