waves

Related Questions

• A source of sound is travelling with a velocity 40 km/hour towards observer and emits sound of frequency 2000 Hz. If velocity of sound is 1220 km/hour, then what is the apparent frequency heard by an observer

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• Sound waves of wavelength greater than that of audible sound are called

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• A travelling wave passes a point of observation. At this point, the time interval between successive crests is 0.2 seconds and

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• The relation between frequency $n$ wavelength $\lambda$ and velocity of propagation $v$ of wave is

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• A man is standing between two parallel cliffs and fires a gun. If he hears first and second echoes after 1.5 s and 3.5s respectively, the distance between the cliffs is (Velocity of sound in air = 340 m/s)

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