Question
Physics Question on mechanical properties of solids
A wire of length L, radius r when stretched with a force F changes in length by l. What will be the change in the 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
Answer
l
Explanation
Solution
Answer (b) l