Question

For a given material the Young’s modulus is 3 times the Bulk modulus of material then its modulus of rigidity is

• A. $2B$
• B. $1.5B$
• C. $B$
• D. $\frac{B}{2}$

Answer 1

Answer: (B)

$\frac{9}{Y}=\frac{3}{G}+\frac{1}{B}$
$(\because Y=3B)$
$\therefore G=\frac{3}{2}B=1.5B$