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The temperature of a wire is doubled. T...

The temperature of a wire is doubled. The young's modulus of elasticity

A

Will also double

B

will become four times

C

will remain same

D

will decrease

Text Solution

Verified by Experts

The correct Answer is:
D
Thermal stress `=Y alpha Delta T` or `Y=("thermal stress")/(alpha Delta T)` i.e. `Y prop (1)/(Delta T)`
As temperature increases, Y decreases.
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PRADEEP-PROPERTIES OF BULK MATTER-Multiple choice questions-I
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