Physics-
General
Easy
Question
Consider a small surface area of 
at the top of a mercury drop of radius 4 mm. If atmospheric pressure 
p and surface tension of mercury 0.465 N/m. Neglect the effect of gravity The force exerted on this area by the mercury surface in contact with it
- 0.00023 N
- 0.00043 N
- 0.00013 N
- 0.00033 N
The correct answer is: 0.00023 N
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.
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