Question

The length of metal wire is l when the tension in it is nF and ml when the tension in it is (n + 1) F. Then natural length of wire is
(A) [1 - n(1 – m)] l
(B) [1 + n(1 - m )]l
(C) [1 – n (1 + m)] l
(D) [1 + n(1 + m)] l

Answer 1

Answer:

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