Young\'s modulus of a rod is `(AgL^2)/(2l)` for which elongation is `lamda` due to its own weight
Channel: Doubtnut
Date: 2020-01-19

Young\'s modulus of a rod is `(AgL^2)/(2l)` for which elongation is `lamda` due to its own weight when suspended from the ceiling. L is the length of the rod and A is constant, which is: