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In a wire of length L, the increase in i...

In a wire of length L, the increase in its length is `l`. If the length is reduced to half, the increase in its length will be

A

Reduced by half

B

Increase by half

C

Remains same

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
(a)Here, L=10 cm `=10xx10^(-2) m`
F=100 kgf`=100xx9.8 N`
`therefore`Shearing stress `=(F)/(L^(2))=(100xx9.8)/((10xx10^(-2))^(2))=9.8xx10^(4) Nm^(-2)`
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