Q. In steel, the Young’s modulus and the strain at the breaking point are $2\ \times 10^{6}Nm^{- 2}$ $and\ $0.15 respectively. The stress at the break point for steel is
A) $1.33\ \times 10^{11}Nm^{- 2}$
B) $1.33 \times 10^{12}\ Nm^{- 2}$
C) $2\ \times 10^{10}\ Nm^{- 2}$
D) $3\ \times 10^{10}\ Nm^{- 2}\ $
Explanation
(d) Stress = Strain
= $2\ \times 10^{11} \times 0.15\ Nm^{- 2} = 3 \times 10^{10}\ Nm^{- 2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.