Class 10 Physics Chapter 18 MCQs Notes 2024

Are you looking for the Class 10 Physics Chapter 18 MCQs Notes if yes? then you visit the right place where you can easily find chapter 18 most important mcqs with answers.

Students You know that Chapter 9 (18) atomic and nuclear physics mcqs questions of Physics are helpful so don’t ignore to find more mcqs from your physics of class 10.

Class 10 Physics Chapter 18 Notes

Post TopicSolved MCQs
Book CodePhysics
Class9th Class
Chapter/FullChapter 18
BoardPunjab Board

Class 10 Physics Chapter 18 MCQs With Answers

1: Isotopes are atoms of the same element with different

(a) atomic mass
(b) atomic number
(c) number of protons
(d) number of electrons

2: One of the isotopes of uranium is. The number of neutrons in this isotope is 238 92U

(a) 92
(b) 146
(c) 238
(d) 330

3: Which among the following radiations has more penetrating power?

(a) a beta particle
(b) a gamma ray
(c) an alpha particle
(d) all have the same penetrating ability

4: What happens to the atomic number of an element that emits one alpha particle?

(a) increases by 1
(b) stays the same
(c) decreases by 2
(d) decreases by 1

5: The half-life of a certain isotope is 1 day. What is the quantity of the isotope after 2 days?

(a) one-half
(b) one-quarter
(c) one-eighth
(d) none of these

6: When Uranium (92 protons) ejects a beta particle, how many protons will be in the remaining nucleus?

(a) 89 protons
(b) 90 protons
(c) 91 protons
(d) 93 protons

7: The release of energy by the Sun is due to

(a) nuclear fission
(b) nuclear fusion
(c) burning of gases
(d) chemical reaction

8: When a heavy nucleus splits into two lighter nuclei, the process would

(a) release nuclear energy
(b) absorb nuclear energy
(c) release chemical energy
(d) absorb chemical energy

9: The reason carbon dating works is that

(a) plants and animals are such strong emitters of carbon-14
(b) after a plant or animal dies, it stops taking in fresh carbon-14
(c) there is so much non-radioactive carbon dioxide in the air
(d) when plants or animals die. they absorb fresh carbon -14

Physics MCQs
Physics Chapter 18 MCQs

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