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20 Pa pressure is applied on the head of...

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)` the area of cross section of the head, the pressure exerted at the wall is ____ Pa.

A

20

B

2

C

200

D

100

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The correct Answer is:
C
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