(A) Steel
(B) Rubber
(C) Glass
(D) Sponge
Answer: (A) Steel
Q. Modulus of elasticity is a mechanical property that measures the stiffness of a solid. The modulus of elasticity of steel is:
(A) 120 GPa
(B) 180 GPa
(C) 200 GPa
(D) 250 GPa
Answer: (C) 200 GPa
Q. What is the SI unit of Young’s modulus?
(A) Mole
(B) Pascal
(C) Ampere
(D) Candela
Answer: (B) Pascal