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Q.

In the given figure, a rod is free at one end and other end is fixed. When we change the temperature of rod by Δθ, then strain produced in the rod will be

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a

αΔθ

b

12α∆θ

c

zero

d

information incomplete

answer is C.

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Detailed Solution

Here rod is free to expand from one side. So by changing temperature no strain will be produced in the rod. Hence answer is (c).
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