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A force of 400 kg. weight can break a wi...

A force of 400 kg. weight can break a wire. The force required to break a wire of double the area of cross-section will be

A

500 kg wt

B

250 kg wt

C

1000 kg wt

D

750 kg wt

Text Solution

Verified by Experts

The correct Answer is:
B
`(F_(1))/(A_(1)) = (F_(2))/(A_(2))` but `A_(2) = (A_(1))/(2)`
`:. (F_(1))/(A_(1)) = (2F_(2))/(A_(1)) :. F_(2) = (F_(1))/(2) = 250 kg wt`
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