A wire of length ‘L’, radius ‘r’ when stretched with a force ‘F’ changes in length by l’. What will be the change in length of a wire of same material having length ‘2L’ radius ‘2r and stretched by a force ‘2F’?

(A) l/2 

(B) l 

(C) 2l 

(D) 4l

5 views

1 Answers

Correct option is: (B) l

5 views