A wire of length 1 m is stretched by a force of 10 N. The area of cross-section of the wire is 2×10−6 m2 and Young's modulus (Y) is 2×1011 N/m2. Increase in length of the wire will be -
Why this Question? Key point: Youngs modulus of elasticity is given by, Young's modulus (Y)=StressStrain=FAΔLL ⇒Y=FLAΔL |