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A cube of edge length 10 cm is placed in...

A cube of edge length 10 cm is placed inside a liquid. The pressure at the centre of the face is 15 Pa. find the force exerted by the liquid on this face.

Text Solution

Verified by Experts

`F=PA=(15Pa)xx(10cm)^2`
`=(15Pa)xx(100xx10^-4m^2)=0.15N`
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Knowledge Check

  • To what height should a cyclindrical vessel be filled with a homogeneous liquid to make the force with which the liquid pressure on the sides of the vessel equal to the force exerted by the liquid on the bottom of the vessel ?

    A
    equal to the radius
    B
    less than radius
    C
    more than radius
    D
    four times of radius

  • A gas is confined to a cylindrical container of radius 1 cm and length 1 m. The pressure exerted on an end face, compared with the pressure exerted on the long-curved face, is

    A
    smaller because its area is smaller.
    B
    smaller because most molecules cannot traverse the length of the cylinder without undergoing collisions.
    C
    larger because the face is flat.
    D
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