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Fruendlich Isotherm

The increase ...

Question

The increase in length on stretching a wire is $0.05 %$ . If its Poisson's ratio is 0.4, then its diameter

A

Reduce by

0.02 %

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B

Reduce by

0.1 %

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C

Increase by

0.02 %

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D

Decrease by

0.4 %

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Solution

The correct option is A Reduce by $0.02 %$
Poisson’s ratio $= \frac{L a t e r a l s t r a i n}{L o n g i t u d i n a l s t r a i n} ∴ L a t e r a l s t r a i n = 0.4 \times \frac{0.05}{100}$
So reduced by $0.02 % .$

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