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A wire length L and cross sectional area...

A wire length L and cross sectional area A is made of material of Young's modulus Y . It is strectched by an amount X . The work done is

A

'(YXA/2L)'

B

'(YX^2A)/L'

C

`1/2(YX^2A)/L`

D

`(2YX^2A)/L`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • An iron bar of length L cross sectional A and young modulus Y is pulled by a force from ends so as to produce an elongation l . Which of the following statements is correct ?

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