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Sunday, 16 August 2026
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Physics Past Questions and Answers

Topic: Pressure

Jamb Physics Questions - Pressure

Question 31:
In a hydraulic press , a force of 40N is applied on the effort piston of area 0.4m2. If the force exerted on the load piston is 400N, the area of the large piston is
  • A 4m<sup style='font-size: smaller;'>2</sup>
  • B 8m<sup style='font-size: smaller;'>2</sup>
  • C 2m<sup style='font-size: smaller;'>2</sup>
  • D 1m<sup style='font-size: smaller;'>2</sup>
View Answer & Explanation
Question 32:
As the pressure of a fluid increases, its viscosity
  • A Decreases
  • B Increases
  • C Increases then decreases
  • D Remains constant
View Answer & Explanation
Question 33:
A man exerts a pressure of 2.8 x 103Nm-2 on the ground and has 4 x 10-2m2 of his feet in contact with the ground. The weight of the man is
  • A 102N
  • B 70N
  • C 140N
  • D 112N
View Answer & Explanation
Question 34:
Two liquids L1 and L2 are contained in a U - tube. The height and the density of L1 are 8 cm and 103 kgm-3 respectively. If the density of L2 is 800 kgm-3, its height measured from the same level is
  • A 8 cm
  • B 10 cm
  • C 16 cm
  • D 12 cm
View Answer & Explanation
Question 35:
In the diagram above, the pressure of the gas is
  • A 86 cm of mercury
  • B 66 cm of mercury
  • C 96 cm of mercury
  • D 76 cm mercury
View Answer & Explanation