Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Mechanical Properties of Solids Elastic moduli
The Young's modulus of a wire of length L and radius r is Y N/m2. If the length and radius are reduced to L/3 and r/4, then its Young's modulus will be
1
Y
2
Y/3
3
Y/4
4
More than one of the above
5
None of the above