What force is applied on a piston of area of cross section 2 x 10^-6(10 to the power minus 6) cm^2 to obtained a Force 1of 150N on the piston of area of cross section 1.2 x 10^ -5 m^2
20N
25N
30N
15N
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nm mkn bb ldonot know the ans because of my net
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