A) 1024
B) 572
C) 256
D) 64
Correct Answer: A
Solution :
[a] \[{{L}_{0}}=60cm\] \[{{v}_{0}}=256Hz.\] \[v=\frac{1}{2L}\sqrt{\frac{T}{m}}\] \[\therefore \,\,v\propto \frac{1}{L}\] \[\frac{{{v}_{1}}}{{{v}_{0}}}=\frac{{{L}_{0}}}{{{L}_{1}}}\] \[\Rightarrow \,{{v}_{1}}={{v}_{0}}\frac{{{L}_{0}}}{{{L}_{1}}}=256\times \frac{60}{15}=1024Hz.\]You need to login to perform this action.
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