A longitudinal force F produces an extension in a wire of length L.The force necessary to produce the same extension in a wire of length 4L of the same material and radius as the first wire is.

A longitudinal force F produces an extension in a wire of length L.The

1.	A longitudinal force F produces an extension in a wire of length L.The force necessary to produce the same extension in a wire of length 4L of the same material and radius as the first wire is.
Answer» F 2F 4F F/4 Answer :D