1.

The length of a metal is ????₁ when the tension in it is T₁ andis ????₂ when the tension is T₂. The original length of the wireis(a)????₁ + ????₂/2(b)????₁T₂ + ????₂T₁/T₁ + T₂(c)????₁T₂ + ????₂T₁/T₂ - T₁(d) √T₁T₂????₁????₂​

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EXPLANATION:

WRONG QUESTION is to do it on a regular level and not to use it as an OPTION to use



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