waves

Related Questions

• A source of sound is travelling towards a stationary observer. The frequency of sound heard by the observer is of three times the original frequency. The velocity of sound is v m/sec. The speed of source will be

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• If the density of oxygen is 16 times that of hydrogen, what will be the ratio of their corresponding velocities of sound waves

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• The equation of a longitudinal wave is represented as $y=20\cos \pi (50t-x)$. Its wavelength is

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• In stationary waves, antinodes are the points where there is

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• A sound source of frequency 170 Hz is placed near a wall. A man walking from a source towards the wall finds that there is a periodic rise and fall of sound intensity. If the speed of sound in air is 340 m/s the distance (in metres) separating the two adjacent positions of minimum intensity is

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