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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 136:
The pressure of one mole of an ideal gas of volume 10-2 m3 at a temperature of 27°c is
[molar gas constant = 8.3 J mol-1 k-1]
  • A 2.49 x 10<sup style='font-size: smaller;'>4</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • B 2.24 x 10<sup style='font-size: smaller;'>4</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • C 2.49 x 10<sup style='font-size: smaller;'>5</sup> Nm<sup style='font-size: smaller;'>-1</sup>
  • D 2.24 x 10<sup style='font-size: smaller;'>5</sup> Nm<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation
Question 137:
The ground stated energy for the hydrogen atom is 5.44 x 10-19J . If an electron drops from zero energy to ground state, calculate the frequency of the emitted radiation.
[h = 6.6 x 10-34 Js]
  • A 5.0 x 10<sup style='font-size: smaller;'>16</sup> Hz
  • B 2.0 x 10<sup style='font-size: smaller;'>16</sup> Hz
  • C 5.0 x 10<sup style='font-size: smaller;'>15</sup> Hz
  • D 2.0 x 10<sup style='font-size: smaller;'>15</sup> Hz
  • E No correct option
View Answer & Explanation
Question 138:
The ground stated energy for the hydrogen atom is 5.44 x 10-19J . If an electron drops from zero energy to ground state, calculate the frequency of the emitted radiation.
[h = 6.6 x 10-34 Js]
  • A 5.0 x 10<sup style='font-size: smaller;'>16</sup> Hz
  • B 2.0 x 10<sup style='font-size: smaller;'>16</sup> Hz
  • C 5.0 x 10<sup style='font-size: smaller;'>15</sup> Hz
  • D 2.0 x 10<sup style='font-size: smaller;'>15</sup> Hz
  • E No correct option
View Answer & Explanation
Question 139:
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
Question 140:
The pressure of one mole of an ideal gas of volume 10-2 m3 at a temperature of 27°c is
[molar gas constant = 8.3 J mol-1 k-1]
  • A 2.49 x 10<sup style='font-size: smaller;'>4</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • B 2.24 x 10<sup style='font-size: smaller;'>4</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • C 2.49 x 10<sup style='font-size: smaller;'>5</sup> Nm<sup style='font-size: smaller;'>-1</sup>
  • D 2.24 x 10<sup style='font-size: smaller;'>5</sup> Nm<sup style='font-size: smaller;'>-1</sup>
View Answer & Explanation