The length of a metal wire is l₁ when the tension in it is T₁ and is l2 when the tension is T₂. The natural length of wire is
A. l₁+l₂/₂
B. √l₁l₂
C. l₁T₂−l₂T₁/T₂−T₁
D. l₁T₂+l₂T₁/T₂+T₁

Q&A Education