waves

Related Questions

• The equation of a plane progressive wave is given by $y=0.025\sin (100t+0.25x)$. The frequency of this wave would be

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• A whistle revolves in a circle with an angular speed of 20 rad/sec using a string of length 50 cm. If the frequency of sound from the whistle is 385 Hz, then what is the minimum frequency heard by an observer, which is far away from the centre in the same plane ? (v = 340 m/s)

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• The Doppler's effect is applicable for

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• Consider the three waves ${{z}_{1}},{{z}_{2}}$ and ${{z}_{3}}$ as ${{z}_{1}}=A\sin (kx-\omega \,t)$, ${{z}_{2}}=A\sin (kx+\omega \,t)$ and ${{z}_{3}}=A\sin (ky-\omega \,t)$. Which of the following represents a standing wave

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• The minimum distance of reflector surface from the source for listening the echo of sound is

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