waves

Related Questions

• A tuning fork of known frequency 256 Hz makes 5 beats per second with the vibrating string of a piano. The beat frequency decreases to 2 beats per second when the tension in the piano string is slightly increased. The frequency of the piano string before increasing the tension was

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• If at same temperature and pressure, the densities for two diatomic gases are respectively ${{d}_{1}}$ and ${{d}_{2}}$, then the ratio of velocities of sound in these gases will be

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• Equation of a progressive wave is given by $y=4\sin \left\{ \pi \left( \frac{t}{5}-\frac{x}{9} \right)+\frac{\pi }{6} \right\}$ . Then which of the following is correct

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• At what speed should a source of sound move so that stationary observer finds the apparent frequency equal to half of the original frequency

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• Two sound waves of slightly different frequencies propagating in the same direction produce beats due to

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