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संबंधित प्रश्न
The human ear can detect continuous sounds in the frequency range from 20 Hz to 20,000 Hz. Assuming that the speed of sound in air is 330 m s−1 for all frequencies, calculate the wavelengths corresponding to the given extreme frequencies of the audible range.
A wave passes from one medium to another medium. Mention one property of the wave out of speed, frequency or wavelength which changes.
What is the shape of a soundboard kept behind the speaker on the stage of a big hall ?
What is a megaphone ? Name the principle on which a megaphone works.
Mention two properties of a wave, one property which varies and the other which remains constant when the wave passes from one medium to another.
What is meant by echo depth sounding?
When a sound is made from a distance of 18 m, in front of a tall building, it is found to get repeated again. Which phenomenon is associated with this observation? Give a brief explanation of this phenomenon?
A sound wave whose frequency is 5000 Hz travels in air and then hits the water surface. The ratio of its wavelengths in water and air is ______.
