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Two strings A and B of lengths, L(A)=80 ...

Two strings A and B of lengths, `L_(A)=80 cm and L_(B)=x cm` respectively are used separately in a sonometer. The ratio of their densities `(d_(A)//d_(B))` is 0.81. The diameter of B is one -half that of A. If the strings have the same tension and fundamental frequency the value of x is

A

33

B

102

C

144

D

130

Text Solution

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The correct Answer is:
C
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