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| 1. |
A transverse sinusoidal wave of amplitude a, wavelength l and frequency n is travelling on a stretched string. The maximum speed of any point on the string is v/10, where v is the speed of propagation of the wave. If \[a={{10}^{-3}}\,m\] and \[v=10\,m{{s}^{-1}}\], then l and n are given by [IIT 1998] |
| A. | \[\lambda =2\pi \times {{10}^{-2}}\,m\] |
| B. | \[\lambda ={{10}^{-3}}\,m\] |
| C. | \[n=\frac{{{10}^{3}}}{2\pi }Hz\] |
| D. | \[n={{10}^{4}}\,Hz\] |
| Answer» B. \[\lambda ={{10}^{-3}}\,m\] | |