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Tuesday, 18 August 2026
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Physics Past Questions and Answers

Topic: Structure of Matter and Kinetic Theory

Jamb Physics Questions - Structure of Matter and Kinetic Theory

Question 156:
A gas with initial volume of 2 X 10-6m3 is allowed to expand to six times its initial value at constant pressure of 2 x 105Nm-2. The work done is
  • A 2.0J
  • B 4. 0 J
  • C 12.0 J
  • D 2.4 J
View Answer & Explanation
Question 157:
The particles emitted when \( ^{39}_{19}K \text{ decay to } ^{39}_{19}K \) is
  • A Gamma
  • B Beta
  • C Electron
  • D Alpha
View Answer & Explanation
Question 158:
The magnetic force on a charged particle moving with velocity v is
  • A Proportional to both the magnitude of the charge and the velocity v
  • B Independent of the magnitude of the charge
  • C Proportional to the velocity v only
  • D Proportional to the magnitude of the charge only
View Answer & Explanation
Question 159:
A piece of cork floats in a liquid. What fraction of its volume will be immersed in the liquid?
[Density of the cork = 0.25 x 103kgm-3, Density of the liquid = 1.25 x 103kgm-3]
  • A 0.8
  • B 0.5
  • C 0.2
  • D 0.1
View Answer & Explanation
Question 160:
A gas at a pressure of 105Nm-2expands from 0.6m-3 to 1.2m3 at constant temperature, the work done is
  • A 7.0 x 10<sup style='font-size: smaller;'>6</sup>J
  • B 6.0 x 10 <sup style='font-size: smaller;'>6</sup>J
  • C 6.0 x 10 <sup style='font-size: smaller;'>5</sup>J
  • D 6.0 x 10 <sup style='font-size: smaller;'>4</sup>J
View Answer & Explanation