These are the MCQs of Atomic and Nuclear Physics with Answers. MCQs of Atomic and Nuclear Physics is very important for high school. MCQs are given in multiple-choice questions. These type of MCQs are helpful in preparing Physics subject for Grade 9 and Grade 10. In these MCQs, you will learn the most important topics like nuclear physics, nuclear transmutations, half-life measurement, the fission reaction, atomic number, neutron number, atomic mass number, and electron number.
Have a look at the MCQs of Atomic and Nuclear Physics with Answers:
1. Particles of Alpha (α) are helium (He) nucleus with a charge of
(A) e
(B) 3e
(C) 2e
(D) α
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2. Process of two light nuclei combine to form a heavier nucleus?
(A) nuclear fusion
(B) Nuclear fission
(C) nuclear power
(D) nuclear transmutation
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3. If a C-14 has a half-life of 5730 years, then how long will it take for the number of C-14 in a sample to drop to 1/8 of the initial quantity?
(A) 2.58 × 104 years
(B) 1.72 × 104 years
(C) 1.44 × 104 years
(D) 2.58 × 104 years
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4. Elements which emit natural radioactivity are known as
(A) radioactive elements
(B) nuclear elements
(C) radio elements
(D) active elements
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5. 1 Bq is equal to In SI base units,
(A) 0.01 disintegration per second
(B) 10 disintegration per second
(C) 1 disintegration per second
(D) 1.5 disintegration per second
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6. A helium nucleus comprising of two protons and two neutrons with a charge of 2e is
(A) beta particle
(B) alpha particle
(C) negative particle
(D) gamma particle
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7. Radiations present in the atmosphere due to different radioactive substances are called
(A) environmental radiations
(B) positive radiations
(C) background radiations
(D) cosmic radiations
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8. radiation of Gamma (γ) are fast-moving
(A) electrons
(B) protons
(C) neutrons
(D) photons
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9. what is the range of alpha particles in the air?
(A) several thousand meters
(B) few centimeters
(C) several hundred meters
(D) several meters
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10. Isotopes have a different number of
(A) neutrons
(B) electron
(C) shells
(D) positrons
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11. In the nucleus, the number of protons inside represents
(A) atomic mass
(B) atomic count
(C) atomic number
(D) radioactivity level
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12. The phenomenon by which radiations split matter into negative and positive ions is called
(A) radiation
(B) transmutation
(C) ionization
(D) radioactivity
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13. Beta particles are a stream of high energy
(A) protons
(B) electrons
(C) photons
(D) positrons
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14. atomic number 1 to 82 of Nuclei are
(A) moderately stable
(B) unstable
(C) stable
(D) radioactive
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15. During natural radioactivity, an unstable nucleus disintegrates to become more
(A) unstable
(B) stable
(C) excited
(D) unexcited
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17. Nuclei with atomic number 1 to 82 are most of the
(A) unstable nuclei
(B) stable nuclei
(C) negative nuclei
(D) positive nuclei
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19. The fast-moving light photons are
(A) alpha radiation
(B) beta radiations
(C) no radiations
(D) gamma radiation
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20. In the nucleus the number of protons and neutrons is
(A) atomic mass number (A)
(B) neutron number (N)
(C) atomic number (Z)
(D) electron number (E)
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21.What is the mass of products In fission?
A. more than original nucleus
B. less than original nucleus
C. equal to original nucleus
D. all of above
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22. The radiation which primarily consists of protons, electrons, large nuclei and alpha particles are called
A. environmental radiations
B. background radiations
C. cosmic radiations
D. positive radiation
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23. What is the half-life of Carbon-14?
A. 5730 years
B. 23 years
C. 1000 years
D. 1200 years
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24. What is the name of process in which heavy nucleus splits into two by bombarding a slow-moving neutron is called ?
A. radioactivity
B. nuclear fission
C. nuclear fusion
D. nuclear splitting
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25. What is the name of stream which is high energy electrons
A. alpha radiation
B. no radiations
C. gamma radiation
D. beta radiations
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26. Half-life of Radium-226 is
A. 1620 years
B. 1160 years
C. 1340 years
D. 1580 years
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27. The radiations that can ionize the matter are
A. alpha radiations
B. gamma radiations
C. beta radiations
D. all of above
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28. What is the name of Nuclei which do not emit radiations naturally?
A. stable nuclei
B. unstable nuclei
C. positive nuclei
D. negative nuclei
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29. The matter is built from small particles called
A. radiant
B. isotopes
C. atoms
D. ions
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30. How many types of radiations emitted by the radioactive substance
A. 2
B. 4
C. 6
D. 3
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31. The radioactive elements which are artificially produced, known as
A. ions
B. radiant
C. radioisotopes
D. transmutations
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32. The original material is decayed during the second half-life
A. one quarter
B. Three quarter
C. Two quarter
D. all of above
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33. As compared to the masses of original nuclei in nuclear fusion, the final nucleus is always
A. Less
B. more
C. equal
D. zero
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34. The mass of proton and neutron is
A. zero
B. equal
C. unequal
D. undetermined
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35. a small amount is present of radioactive in the atmosphere” ?
A. carbon-11
B. carbon-15
B. carbon-14
D. carbon-16
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36. Radiation that causes sores and redness on the skin is
A. alpha
B. gamma and beta
C. gamma only
D. beta only
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37. The beta particle has a range of In the air
A. several thousand meters
B. few centimeters
C. several hundred meters
D. several meters
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