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Byju's Answer

Standard IX

Physics

Second Law of Motion

A composite s...

Question

A composite section shown in the figure below was formed at 20°c and was made of two materials A and B. If the coefficient of thermal expansion of A is greater than that of B and the composite section is heated to 40°C, then A and B will

be in tension and compression respectively

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both be in compression

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both be in tension

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be in compression and tension respectively

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Solution

The correct option is B both be in compression
Since both the ends of the bar are unyielding. With increase in temperature, both bars will be in compression and the load will be transferred to the supports

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A composite section shown in the figure below was formed at 20°c and was made of two materials A and B. If the coefficient of thermal expansion of A is greater than that of B and the composite section is heated to 40°C, then A and B will

The correct option is B both be in compressionSince both the ends of the bar are unyielding. With increase in temperature, both bars will be in compression and the load will be transferred to the supports

The correct option is B both be in compression
Since both the ends of the bar are unyielding. With increase in temperature, both bars will be in compression and the load will be transferred to the supports