Question

20. A steel wire is 1m long and 1mm? in area of
cross-section. If it takes 200 N to stretch this
wire by 1mm how much force will be required
to stretch the wire of the same area and of same
material having length of 10m to 1002 cm
1) 100 N
2) 200 N
3) 400 N
4) 2000 N​

Answer 1

C is correct option.................