waves

Related Questions

• A source of sound S of frequency 500 Hz situated between a stationary observer O and a wall W, moves towards the wall with a speed of 2 m/s. If the velocity of sound is 332 m/s, then the number of beats per second heard by the observer is (approximately)

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• When a tuning fork vibrates, the waves produced in the fork are

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• In a medium sound travels 2 km in 3 sec and in air, it travels 3 km in 10 sec. The ratio of the wavelengths of sound in the two media is

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• Two waves are represented by ${{y}_{1}}=a\sin \left( \omega \,t+\frac{\pi }{6} \right)$ and ${{y}_{2}}=a\cos \omega \,t$. What will be their resultant amplitude

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• The echo of a gun shot is heard 8 sec. after the gun is fired. How far from him is the surface that reflects the sound (velocity of sound in air = 350 m/s)

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