A metal rod has length L, radius of its cross-section r.Youngs modules Y and thermal coefficient of linear expansion is α.It is clamped between two rigid supports with negligible tension.If its tempareture is increased by T^⋅ C,then force exerted by the rod on any of the supports is

A metal rod has length L, radius of its cross-section r.Youngs modules

1.	A metal rod has length L, radius of its cross-section r.Youngs modules Y and thermal coefficient of linear expansion is α.It is clamped between two rigid supports with negligible tension.If its tempareture is increased by T^⋅ C,then force exerted by the rod on any of the supports is
Answer» `2π^2YT` `2πr^2YαT` `πr^2YLT` `πr^2YαT` ANSWER :A

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A metal rod has length L, radius of its cross-section r.Youngs modules Y and thermal coefficient of linear expansion is α.It is clamped between two rigid supports with negligible tension.If its tempareture is increased by T^⋅ C,then force exerted by the rod on any of the supports is

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