waves

Related Questions

• The displacement of the interfering light waves are ${{y}_{1}}=4\sin \omega \,t$ and ${{y}_{2}}=3\sin \left( \omega \,t+\frac{\pi }{2} \right)$. What is the amplitude of the resultant wave

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• If the temperature of the atmosphere is increased the following character of the sound wave is effected

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• The equation of progressive wave is $y=0.2\sin 2\pi \left[ \frac{t}{0.01}-\frac{x}{0.3} \right]$, where $x$ and $y$ are in metre and $t$ is in second. The velocity of propagation of the wave is

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• Two vibrating strings of the same material but lengths $L$ and $2L$ have radii $2r$ and $r$ respectively. They are stretched under the same tension. Both the strings vibrate in their fundamental modes, the one of length $L$ with frequency $n_1$ and the other with frequency $n_2$. The ratio $n_1 / n_2$ is given by

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• A source of sound of frequency n is moving towards a stationary observer with a speed S. If the speed of sound in air is V and the frequency heard by the observer is ${{n}_{1}}$, the value of ${{n}_{1}}/n$ is

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