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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 51:
A mass of gas at 7oC and 70cm of mercury has a volume of 1200cm3. Determine its volume at 27oC and pressure of 75cm of mercury.
  • A 1200cm<sup style='font-size: smaller;'>3</sup>
  • B 1378cm<sup style='font-size: smaller;'>3</sup>
  • C 4320cm<sup style='font-size: smaller;'>3</sup>
  • D 4629cm<sup style='font-size: smaller;'>3</sup>
View Answer & Explanation
Question 52:
From the kinetic theory of gases, temperature is a
  • A Form of energy and is proportional to the total kinetic energy of the molecules
  • B Form of energy and is proportional to the average kinetic energy of the molecules
  • C Physical property and is proportional to the total kinetic energy of the molecules
  • D Physical property and is proportional to the average kinetic energy of the molecules
View Answer & Explanation
Question 53:
When a radiation strikes a metal surface, electrons may be ejected from the metal. The maximum kinetic energy which may be acquired by an ejected electron depend on the
  • A Intensity of the radiation
  • B Source of the radiation
  • C Wavelength of the radiation
  • D Detection device of the electron
View Answer & Explanation
Question 54:
Which of the following is TRUE of the particles emitted in radioactive disintegration?
  • A The alpha particle is the helium nucleus H
  • B The alpha particle is lighter than the beta particle
  • C The alpha particle is deflected more than the beta particle in a magnetic field
  • D The beta particle is deflected more than the alpha particle in a magnetic field
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Question 55:
40m3 of liquid is mixed with 60m3 of another liquid Q. If the density of P and Q are 1.00kgm-3 and 1.6kgm-3 respectively, what is the density of the mixture?
  • A 0.05kgm<sup style='font-size: smaller;'>-3</sup>
  • B 1.25kgm<sup style='font-size: smaller;'>-3</sup>
  • C 1.30kgm<sup style='font-size: smaller;'>-3</sup>
  • D 1.36kgm<sup style='font-size: smaller;'>-3</sup>
View Answer & Explanation