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Applying NLM along 3 Axis

In the figure...

Question

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

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B

1 : 2

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C

2 : 1

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D

0

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Solution

The correct option is A 1 : 1
Answer is A
Distribution of force or Tension, T, will be same in both the cases and hence elongation will be the same.

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