question_answer

In the figure (i) an extensible string is fixed at one end and the other end is pulled by a tension T. In figure (ii) another identical string is pulled by tension T at both the ends. The ratio of elongation in equilibrium of string in (i) to the elongation of string in (ii) is

A) \[1:1\]

B) \[1:2\]

C) \[2:1\]

D) (d)\[0\]

Correct Answer: A

Solution :

[a] Tension in both string shall be same which can be observed by making FBD of string in figure (i)