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CTET Prep: Science Questions - Physics - Modern Physics
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Modern physics is a branch of physics that deals with the post-Newtonian concepts in the world of physics. It is based on the two major breakthroughs of the twentieth century: Relativity and Quantum Mechanics. Quantum effects typically involve distances related to atoms.

CTET Prep: Science Questions - Physics - Modern Physics
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25 Questions

1. Enriched uranium is better as a fuel for a nuclear reactor because it has greater proportion of
2. Which of the following particles is unstable?
3. Percentage of the original number of atoms in a radioactive sample remaining at the end of one mean life is
4. In the experiments for determination of e/m of electrons by Thomson method electric and magnetic fields are
5. The mass defect per nucleon is called
6. In nuclear reaction, there is conservation of
7. The important conclusion given by Millikan’s experiment about the charge is
8. Which of the particles has similar mass to that of the electron?
9. Superconductivity
10. Nuclear forces are
11. When the speed of electrons increases, then the value of the specific charge on an electron
12. Thomson’s cathode ray tube experiment demonstrated that
13. The fourth state of matter is known as
14. The mass of a neutron is nearly same as that of
15. An atom bomb is based upon the principle of
16. A strong argument for the particle nature of cathode rays is that they
17. Consider the following metals:
1. Uranium
2. Radium
3. Plutonium Which of these are used in making nuclear weapons?
18. If a U-238 nucleus splits into two identical parts, the two nuclei so produced will be
19. The most penetrating radiation out of the following is
20. Which one of the following is not a radioactive element?
21. Einstein’s mass-energy relation is given by the expression
22. It is possible to understand nuclear fission on the basis of the
23. When a triton capture a proton, it becomes
24. The ratio of atomic volume to nuclear volume is of the order of
25. Photoelectric effect supports quantum nature of light because

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