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A wire can be broken by applying a load ...

A wire can be broken by applying a load of 15 kg wt. The force required to break the wire of the same length and material but of twice the diameter of the wire will be

A

30 kg wt.

B

45 kg wt.

C

60 kg wt.

D

80 kg wt.

Text Solution

Verified by Experts

The correct Answer is:
C
`(15)/(pi r^(2)) = (F)/(pi (2r)^(2)) :. F = 60 "kg wt".`
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