The length, tension, diameter and density of a wire \( \mathrm{B} \) are double than the corresp...

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The length, tension, diameter and density of a wire \( \mathrm{B} \) are double than the corresponding quantities for another stretched wire A. Then.
\( \mathrm{P} \)
(A) Fundamental frequency of \( \mathrm{B} \) is \( \frac{1}{2 \sqrt{2}} \) times that of A.
\( \mathrm{W} \)
(B) The velocity of wave in \( \mathrm{B} \) is \( \frac{1}{\sqrt{2}} \) times that of velocity in \( \mathrm{A} \).
(C) The fundamental frequency of \( A \) is equal to the third overtone of \( B \).
(D) The velocity of wave in \( \mathrm{B} \) is half that of velocity in \( \mathrm{A} \).
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