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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 131:
N + He → O + X
14 4 17
7 2 8




In the equation above, the particles X is
  • A A proton
  • B A neutron
  • C An α - particle
  • D A β - particle
View Answer & Explanation
Question 132:
If the pressure of the vapour on top of an enclosed liquid is equal to the atmospheric pressure, what will be the temperature of the liquid enclosed?
  • A Room temperature
  • B Boiling point
  • C Freezing point
  • D Standard temperature
View Answer & Explanation
Question 133:
A piece of radioactive material contains 1020 atoms.
If the half life of the material is 20 seconds, the number of disintegration in the first second is
  • A 3.47 x 10<sup style='font-size: smaller;'>18</sup>
  • B 6.93 x 10 <sup style='font-size: smaller;'>20</sup>
  • C 3.47 x 10<sup style='font-size: smaller;'>20</sup>
  • D 6.93 x 10<sup style='font-size: smaller;'>18</sup>
View Answer & Explanation
Question 134:
The pressure of two moles of an ideal gas at a temperature of 27oC and volume 10-2m3 is
[R = 8.313 J mol-1K-1]
  • A 4.99 x 10<sup style='font-size: smaller;'>5</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • B 9.80 x 10<sup style='font-size: smaller;'>3</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • C 4.98 x 10<sup style='font-size: smaller;'>3</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • D 9.80 x 10<sup style='font-size: smaller;'>5</sup> Nm<sup style='font-size: smaller;'>-2</sup>
View Answer & Explanation
Question 135:
If a wire 30 cm long is extended to 30.5 cm by a force of 300 N. find the strain energy of wire
  • A 0.75 J
  • B 7.50 J
  • C 75.00 J
  • D 750.00 J
View Answer & Explanation