The length of a metal wire is l(1) when ...

The length of a metal wire is `l_(1)` when the tension in it is `T_(1)` and is `l_(2)` when the tension is `T_(2)`. Then natural length of the wire is

A

`(l_(1)+l_(2))/(2)`

B

`sqrt(l_(1)l_(2))`

C

`(l_(1)T_(2)-l_(2)T_(1))/(T_(2)-T_(1))`

D

`(l_(1)T_(2)+l_(2)T_(1))/(T_(2)-T_(1))`

Text Solution

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The correct Answer is:

C

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