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The length of a metal wire is L1, when t...

The length of a metal wire is `L_1`, when the tension is `T_1` and `l_2` when the tension is `T_2`. The unstretched length of the wire is

A

`(L_(1) + L_(2))/(2)`

B

`sqrt(L_(1)L_(2))`

C

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

D

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

Text Solution

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