The length, Young’s modulus and coefficient of thermal expansion of bar P are

Question

The length, Young’s modulus and coefficient of thermal expansion of bar P are twice that of bar Q. what will be the ration of stress developed in bar P to that in bar Q if the temperature of both bars is increased by the same amount?

Options:

A . 2

B . 8

C . 4

D . 16

Answer: Option C
Answer: (c).4

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