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Subject :NSO    Class : Class 8

A 20 Pa pressure is applied on the head of a nail placed perpendicular to the surface of a wall. If the area of cross-section of the tip of the nail is (1/10) times the area of cross-section of the head, the pressure exerted at the wall is

A10 Pa
B20 Pa
C200 Pa
DNone of these.


200 pa

Ans 1:

Class : Class 5

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