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Sunday, 21 June 2026
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Physics Past Questions and Answers

Topic: using the theory to explain:

Jamb Physics Questions - using the theory to explain:

Question 41:
The pressure of a given mass of a gas changes from 200Nm-2 to 120Nm-2 while the temperature drops from 127°C to -73°C. The ratio of the final volume to the initial volume is
  • A 2 : 5
  • B 5 : 4
  • C 5 : 2
  • D 4 : 5
View Answer & Explanation
Question 42:
A gas with initial volume of 2 X 10-6m3 is allowed to expand to six times its initial value at constant pressure of 2 x 105Nm-2. The work done is
  • A 2.0J
  • B 4. 0 J
  • C 12.0 J
  • D 2.4 J
View Answer & Explanation
Question 43:
The magnetic force on a charged particle moving with velocity v is
  • A Proportional to both the magnitude of the charge and the velocity v
  • B Independent of the magnitude of the charge
  • C Proportional to the velocity v only
  • D Proportional to the magnitude of the charge only
View Answer & Explanation
Question 44:
the pressure of 3 moles of an ideal gas at a temperature of 27°C having a volume of 10-3m3 is
  • A 2.49 x 10<sup style='font-size: smaller;'>5</sup>Nm<sup style='font-size: smaller;'>-2</sup>
  • B 7.47 x 10<sup style='font-size: smaller;'>5</sup>Nm<sup style='font-size: smaller;'>-2</sup>
  • C 2.49 x 10<sup style='font-size: smaller;'>6</sup>Nm<sup style='font-size: smaller;'>-2</sup>
  • D 7.47 x 10<sup style='font-size: smaller;'>6</sup>Nm<sup style='font-size: smaller;'>-2</sup>
View Answer & Explanation
Question 45:
A hose of cross-sectional area 0.5m2 is used to discharge water from a water tanker at a velocity of 60ms-1 in 20s into a container. If the container is filled completely, the volume of the container is
  • A 240m<sup style='font-size: smaller;'>3</sup>
  • B 600m <sup style='font-size: smaller;'>3</sup>
  • C 2400m <sup style='font-size: smaller;'>3</sup>
  • D 6000m<sup style='font-size: smaller;'>3</sup>
View Answer & Explanation