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Tuesday, 18 August 2026
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Physics Past Questions and Answers

Topic: Pressure in liquids

Jamb Physics Questions - Pressure in liquids

Question 16:
Volatile liquids usually
  • A Have high boiling points
  • B Have low boiling points
  • C Have high densities
  • D Have high melting points
View Answer & Explanation
Question 17:
A well 1km deep is filled with a liquid of density 950kg/m\(^3\) and g = 10m/s\(^2\), the pressure at the bottom of the well is
  • A 9.6 à— 10\(^6\)N/m\(^2\)
  • B 9.5 x 10\(^5\)N/m\(^2\)
  • C 9.4 x 10\(^6\)N/m\(^2\)
  • D 9.5 x 10\(^6\)N/m\(^2\)
View Answer & Explanation
Question 18:
A reservoir is filled with liquid of density 2000 kgm\(^{-1}\). Calculate the depth at which the pressure in the liquid will be equal to 9100 Nm\(^{-2}\) (g = 10 ms\(^{-2}\))
  • A 0.262 m
  • B 0.664 m
  • C 0.819 m
  • D 0.455 m
View Answer & Explanation
Question 19:
Calculate the absolute pressure at the bottom of a lake at a depth of 32.8 m. Assume the density of the water is 1 x 10^3 kgm-3 and the air above is at a pressure of 101.3 kPa.

[Take g = 9.8 ms-2]
  • A 422.7
  • B 220.14
  • C 464.53
  • D 321.74
View Answer & Explanation
Question 20:
An air bubble of radius 4.5 cm initially at a depth of 12 m below the water surface rises to the surface. If the atmospheric pressure is equal to 10.34 m of water, the radius of the bubble just before it reaches the water surface is
  • A 6.43 cm
  • B 8.24 cm
  • C 4.26 cm
  • D 5.82 cm
View Answer & Explanation