railway RRB Technician Grade 3 Mock Test 2024 Physics Mechanical Properties of Solids Elastic moduli
If Y, K and η are the values of Young's modulus, bulk modulus and modulus of rigidity of any material respectively. Choose the correct relation for these parameters.
1
\(Y = \frac{{9K\eta }}{{2\eta + 3K}}N/{m^2}\)
2
\(Y = \frac{{9K\eta }}{{3K - \eta }}N/{m^2}\)
3
\(K = \frac{{Y\eta }}{{9\eta - 3Y}}N/{m^2}\)
4
\(\eta = \frac{{3YK}}{{9K + Y}}N/{m^2}\)