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In hydraulic prees radii of connecting p...

In hydraulic prees radii of connecting pipes , `r_1 And r_2` in ratio 1 : 2 in order the lift a heavy mass M on larger piston , the small piston must be pressed thought a minimum force f equal to-

A

Mg

B

`(Mg)/2`

C

`(Mg)/4`

D

`(Mg)/5`

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The correct Answer is:
C
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