Question

A rubber cord of length 40cm and area of crosssectin
4 X10-6 m2 is extended by 10cm. If the energy gain
is 20 joule, young's modulus of rubber is
1) 108 Nm 2
2) 2x108 Nm 2
3) 4 x 108 Nm-2
4) 1.5x106 Nm-2
the

Answer 1

Answer:

108 Nm2 is the young's modulus of rubber