Jee Main
Properties Of Matter
JEE Main 2021 (Online) 31st August Morning Shift
MCQ+4 / -12021
A uniform heavy rod of weight 10 kg ms\(-\)2, cross-sectional area 100 cm2 and length 20 cm is hanging from a fixed support. Young modulus of the material of the rod is 2 \(\times\) 1011 Nm\(-\)2. Neglecting the lateral contraction, find the elongation of rod due to its own weight.