The length of an elastic string is 5 metre when the longitudinal tension is 4 N and 6 metre
Channel: Doubtnut
Date: 12/04/2020

The length of an elastic string is 5 metre when the longitudinal tension is 4 N and 6 metre when the tension is 5 N. If the length of the string (in metre) is "2X" when the longitudinal tension is 9 N (assume Hooke’s law is valid) then the value of X will be :