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A rod is made of uniform material and has non-uniform cross section. It is fixed at both the ends as shown and heated at mid-section. Which of the following statement is correct?

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Force of compression in the rod will be maximum at mid-section

Compressive stress in the rod will be maximum at left end

Since rod is fixed at both the ends, its length will remain unchanged. Hence, no strain will be induced in it

None of these

answer is B.

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Detailed Solution

The compressive force in the rod will be same, therefore, compressive stress will be maximum at this end. Hence, option (b) along is correct

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