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Sunday, 16 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 16:
which of the following does NOT cause a reduction of the surface tension of water?
  • A Soap solution
  • B Detergent
  • C Alcohol
  • D Camphor
  • E Grease
View Answer & Explanation
Question 17:
A quantity of sungas at -133[/sup] occupies 1/3m[sup]3 under pressure 1.4 x 105 Nm-2. if the gas occupies 31 m-2 at 37oC, its pressure will be
  • A 1.26 x 10<sup style='font-size: smaller;'>3</sup>Nm<sup style='font-size: smaller;'>-2</sup>
  • B 3.3 x10<sup style='font-size: smaller;'>4</sup>Nm<sup style='font-size: smaller;'>-2</sup>
  • C 1.35 x 10<sup style='font-size: smaller;'>4</sup>Nm<sup style='font-size: smaller;'>-2</sup>
  • D 2.2 x 10<sup style='font-size: smaller;'>4</sup>Nm<sup style='font-size: smaller;'>-2</sup>
  • E 10<sup style='font-size: smaller;'>5</sup>Nm<sup style='font-size: smaller;'>-2</sup>
View Answer & Explanation
Question 18:
If the volume of a fixed mass of a gas is kept constant, the pressure of the gas
  • A Is inversely proprotional to its centigrade temperature
  • B Is inversely proportional to its absolute temperature
  • C Is directly proportional to its centigrade temperature
  • D Is directly proportional to its absolute temperature
  • E Remains constant also
View Answer & Explanation
Question 19:
In a compound microscope
  • A There is only one lens
  • B The objective lens have a shorter focal length than the eyepiece which is convex
  • C The objective lens has a longer focal length than the eyepiece which is convex
  • D The objective lens has a shorter focal length than the eyepiece which is concave
  • E The objective and the eyepiece are both convex and have the same focal length
View Answer & Explanation
Question 20:
According to Ohm's law, the ratio V/I is constant for
  • A An electrolyte
  • B A diode
  • C A transistor
  • D Silver
  • E All of the above
View Answer & Explanation