For most materials the Youngs modulus is n times the modulus of rigidity, where n is

Options

A. 2
B. 3
C. 4
D. 5

Answer

B

Explanation

For most materials, the modulus of rigidity `eta` is one-third of the Young.s modulus Y.
`eta = (1)/(3) Y or Y = 3 eta :. n= 3`