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The pressure that has to be applied to t...

The pressure that has to be applied to the ends of a steel wire of length 10cm to keep its length constant when its temperature is raised by `100^@C` is : (For steel Young's modulus is `2xx10^11 Nm^-2` and coefficient of thermal expansion is `1.1xx10^-5K^_1`)

A

`2.2 xx 10^(7) Pa`

B

`2.2 xx 10^(6) Pa`

C

`2.2 xx 10^(8) Pa`

D

`2.2 xx 10^(9) Pa`

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