The Young’s modulus of a material is 1011 Nm-2 and its Poisson’s ratio is 0.2. The modulus of rigidity of the material is
A. 0.42 × 1011 N/m2
B. 0.42 × 1014 N/m2
C. 0.42 × 1016 N/m2
D. 0.42 × 1018 N/m2
Answer:A
The Young’s modulus of a material is 1011 Nm-2 and its Poisson’s ratio is 0.2. The modulus of rigidity of the material is
A. 0.42 × 1011 N/m2 B. 0.42 × 1014 N/m2 C. 0.42 × 1016 N/m2 D. 0.42 × 1018 N/m2