waves

Related Questions

• The equation of a wave motion (with $t$ in seconds and $x$ in metres) is given by $y=7\sin \,\left[ 7\pi t-0.4\pi x+\frac{\pi }{3} \right]$. The velocity of the wave will be

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• In a resonance pipe the first and second resonances are obtained at depths 22.7 cm and 70.2 cm respectively. What will be the end correction

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• A person carrying a whistle emitting continuously a note of 272 Hz is running towards a reflecting surface with a speed of 18 km/hour. The speed of sound in air is $345m{{s}^{-1}}$. The number of beats heard by him is

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• Which one of the following does not represent a travelling wave

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• An open tube is in resonance with string (frequency of vibration of tube is n0). If tube is dipped in water so that 75% of length of tube is inside water, then the ratio of the frequency of tube to string now will be

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