Question

If the area of cross-section is halved and length of wire having young’s modulus Y is doubled, then its young’s modulus will become

(1) Y

(2) 4 Y

(3) \(\frac {Y}{2}\)

(4) \(\frac {Y}{4}\)

Answer 1

(1) Y

Young’s modulus is property of material of wire and it is independent of geometrical factors.