CBSE Physics Nuclear Physics Test 2 Online Question Answer Practice
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CBSE Physics Nuclear Physics Test 2 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
  • CBSE Physics.
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Central Board for Secondary Education (CBSE) is arrangements syllabus classes subjects their official results of all basis of Indian examinations. Learning Science subjects include in foundation of student from the start of study. We provide Physics chapter Atomic and Nuclear Physics test for improve your knowledge on multiple choice exams as you can take online easily.

CBSE Physics Nuclear Physics Test 2 Online


1. The mass number of a nucleus is ?

Question 1 of 25

2. Two radioactive substances A and B have decay constants 5λ and λ respectively. At t = 0 they have the same number of nuclei. The ratio of number of nuclei of A to those of B will be [1/e]2 After a time interval ?

Question 2 of 25

3. Which of the following are suitable for the fusion process ?

Question 3 of 25

4. The half-life of radium is about 1600 yr. Of 100 g of radium existing now, 25 g will remain unchanged after ?

Question 4 of 25

5. Mp denotes teh mass of a proton and mn that of a neutron. A given nucleus of binding energy BE, contains Z protons and N neutrons. The mass m(N,Z) of the nucleus is given by ?

Question 5 of 25

6. When a deuterium is bombarded on 8O16 nucleus, an α-particle is emitted, then the product nucleus is ?

Question 6 of 25

7. If in a nuclear fusion process, the masses of the fusing nuclei be m1 and m2 and the mass of the resultant nucleus be m3, then ?

Question 7 of 25

8. A nuclear reaction given by

zXAz +1 YA + -1e° + V- represents ?

Question 8 of 25

9. In the nuclear decay given below

AzX → z+1AY → A-4z-1B* → A - 4 z - 1 B,

the particles emitted in the sequence are ?

Question 9 of 25

10. The binding energy of deuteron is 2.2 MeV and that of 42H is 28 MeV. If two deuteron are fused to form one 42He then the energy released is ?

Question 10 of 25

11. Solar energy is mainly caused due to ?

Question 11 of 25

12. The radius of germanium (Ge) nuclide  is measured to be twice the radius of 94Be. The number of nucleons in Ge are ?

Question 12 of 25

13. A sample of radioactive element has a mass of 10 g at an instant t = 0. The approximate mass of this element in the sample after two mean lives is ?

Question 13 of 25

14. Fission of nuclei is possible because the binding energy per nucleon in them ?

Question 14 of 25

15. The nuclei of which one of the following pain of nuclei are isotones ?

Question 15 of 25

16. A nucleus AzX has mass represented by m (A, Z). If mp and mn denote the mass of proton and neutron respectively and BE the binding energy (in MeV), then ?

Question 16 of 25

17. The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter is an ?

Question 17 of 25

18. In radioactive decay process, the negatively charged emitted β-particles are ?

Question 18 of 25

19. In the reaction 21H + 31H42He + 10n, if the binding energies of 21H, 31H and 42He are respectively α, b and c (in MeV), then the energy (in MeV) released in this reaction is ?

Question 19 of 25

20. Two radioactive materials X1 and X2 have decay constants 5λ and λ respectively. If initially they ave the same number of nuclei. then the ratio of the number of nuclei of X1 to that of X2 will be 1/e after a time ?

Question 20 of 25

21. The volume occupied by an atom is greater than the volume of the nucleus by factor of about ?

Question 21 of 25

22. In a radioactive material the activity at time t1 is R1 and at a later time t2, it is R2. If the decay constant of the material is λ, then ?

Question 22 of 25

23. The mass of proton is 1.0073 u and that of neutron is 1.0087 u (u = atomic mass unit) The binding energy of 2He4 is (mass of helium nucleus = 4.0015 u) ?

Question 23 of 25

24. If the nucleus 2713 Al has a nuclear radius of about 3.6 fm, then 12552 te would have its radius approximately as ?

Question 24 of 25

25. In any fission process the ratio mass of fission products/mass of parent nucleus is ?

Question 25 of 25


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