4.
When a pressure measuring device is immersed in a liquid, a restoring force of 2 N is exerted
by the spring. If the area of cross-section of the piston is 10 cm, what pressure does the mud
exert on the piston?
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Explanation:
Given :- Force = 2N
Area = 10 cm
= 10×1/100m
=0.001 m^2
Therefore, Pressure =Force/Area
= 2/0.001
= 2000 Pascal
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