Question

For most materials, the Young's modulus is $n$ times the modulus of rigidity, where $n$ is

• A. $2$
• B. $3$
• C. $4$
• D. $5$

Answer 1

The correct option is B $3$

For most materials, the modulus of rigidity is one-third of the Young's modulus
$\eta =\frac{1}{3}YorY=3\eta \therefore n=3$