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A rod of length 1000 mm and co-efficient...

A rod of length 1000 mm and co-efficient of linear expansion `alpha=10^-4` per degree is placed symmetrically between fixed walls separated by 1001 mm. Young's modulus of the rod is `10^11N//m^2.` If the temperature is increased by `20^@C,` then the stress developed in the rod is `("in" N//m^2):`

A

10

B

`10^8`

C

`2xx10^8`

D

cannot be calculated

Text Solution

Verified by Experts

The correct Answer is:
B
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