A metal rod of young's modulus Y and coefficient of thermal expansion alpha is held at its two ends such that its length remains invariant. If its temperature is raised by i.e, the linear stress developed in it is

A metal rod of young's modulus Y and coefficient of thermal expansion

1.	A metal rod of young's modulus Y and coefficient of thermal expansion alpha is held at its two ends such that its length remains invariant. If its temperature is raised by i.e, the linear stress developed in it is
Answer» `( ALPHA t)/( Y)` `( Y)/( alpha t)` `Y alpha t` `( 1)/(Y alpha t)` ANSWER :C