JEE Main 201912 Apr, Evening shiftPhysicsMediumProperties of Solids and Liquids184× since 2002
A uniform cylindrical rod of length L and radius r, is made from a material whose Young’s modulus of
Elasticity equals Y. When this rod is heated by temperature T and simultaneously subjected to a net
longitudinal compressional force F, its length remains unchanged. The coefficient of volume expansion, of
the material of the rod, is (nearly) equal to :