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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 101:
Water does not drop through an open umbrella of silk materials unless the inside of the umbrella is touched. This is due to
  • A Capilarity
  • B Osmotic pressure
  • C Viscosity
  • D Surface tension
View Answer & Explanation
Question 102:
The stylus of a phonograph record exerts a force of 7.7 x 10-2N on a groove of radius 10-5m. Compute the pressure exerted by the stylus on the groove
  • A 2.45 x 10<sup style='font-size: smaller;'>8</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • B 3.45 x 10<sup style='font-size: smaller;'>8</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • C 4.90 x 10<sup style='font-size: smaller;'>8</sup> Nm<sup style='font-size: smaller;'>-2</sup>
  • D 2.42 x 10<sup style='font-size: smaller;'>8</sup> Nm<sup style='font-size: smaller;'>-2</sup>
View Answer & Explanation
Question 103:
The phenomenon where by the water droplets in the atmosphere combines with dust particles in the air to reduce visibility is
  • A Cloud
  • B Mist
  • C Hail
  • D Fog
View Answer & Explanation
Question 104:
If 1.2 x 106J of heat energy is given off in 1 sec from a vessel maintained at a temperature gradient of 30Km-1, the surface area of the vessel is
  • A 1.0 x 10<sup style='font-size: smaller;'>2</sup>m<sup style='font-size: smaller;'>2</sup>
  • B 9. 0 x 10<sup style='font-size: smaller;'>2</sup>m<sup style='font-size: smaller;'>2</sup>
  • C 1.0 x 10<sup style='font-size: smaller;'>3</sup>m<sup style='font-size: smaller;'>2</sup>
  • D 9.0 x 10<sup style='font-size: smaller;'>4</sup>m<sup style='font-size: smaller;'>2</sup>
View Answer & Explanation
Question 105:
A radioisotope has a decay constant of 10\(^{-7}\)s\(^{-1}\). The average life of the radioisotope is
  • A 1.00 x 10<sup style='font-size: smaller;'>7</sup>s
  • B 6.93 x 10<sup style='font-size: smaller;'>6</sup>s
  • C 1.00 x 10<sup style='font-size: smaller;'>-7</sup>s
  • D 6.93 x 10<sup style='font-size: smaller;'>7</sup>s
View Answer & Explanation