A uniform cylindrical rod of length 
and radius 
, is made from a material whose Young's modulus of Elasticity equals 
. When this rod is heated by temperature 
and simultaneously subjected to a net longitudinal compressional force 
, its length remains unchanged. The coefficient of volume expansion, of the material of the rod, is (nearly) equals to :
Text Solution
Verified by ExpertsC
Length of cylinder remains unchanged
so 
is linear coefficient of expansion 
The coefficient of volume expansion 
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