waves

Related Questions

• Equation of the progressive wave is given by : $y=a\sin \pi (40t-x)$ where $a$ and $x$ are in metre and $t$ in second. The velocity of the wave is

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• A micro-wave and an ultrasonic sound wave have the same wavelength. Their frequencies are in the ratio (approximately)

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• Transverse waves of same frequency are generated in two steel wires A and B. The diameter of A is twice of B and the tension in A is half that in B. The ratio of velocities of wave in A and B is

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• Two wires are in unison. If the tension in one of the wires is increased by 2%, 5 beats are produced per second. The initial frequency of each wire is

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• A whistle sends out 256 waves in a second. If the whistle approaches the observer with velocity 1/3 of the velocity of sound in air, the number of waves per second the observer will receive

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