Question

Find work done in stretching uniform wire 6mm in diameter. If it get stretched by 6mm over a length

of 6m. Young’s modulus of material of wire is 1 x 10¹⁰N/m²​

Answer 1

Answer:

Correct option is C)

Young Modulus of Elasticity

Y=

Al

FL

F=

L

YAl

F=

2

2×10

11

×1×10

−6

×10

−3

×10

−1

F=100N

Work Done =

2

1

×100×1×10

−3

×10

−1

=0.005J

Work done = 5×10

−3

joule