A) \[116\,m{{s}^{-1}}\]
B) \[40\,\,m{{s}^{-1}}\]
C) \[200\,m{{s}^{-1}}\]
D) \[80\,\,m{{s}^{-1}}\]
E) \[5900\,\,m{{s}^{-1}}\]
Correct Answer: A
Solution :
The speed of transverse wave \[v=\sqrt{\frac{T}{m}}\] Given, \[T=20N,\frac{M}{l}=\frac{d\times Al}{l}=d\times A\] \[\therefore \] \[v=\sqrt{\frac{20\times {{10}^{-3}}}{7.5\times 0.2\times {{({{10}^{-3}})}^{2}}}}\] \[v\approx 116m{{s}^{-1}}\]You need to login to perform this action.
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