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प्रश्न
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संबंधित प्रश्न
Name the characteristic of sound in relation to its waveform
Define wave velocity term in relation to a wave.
A wave passes from one medium to another medium. Mention one property of the wave out of speed, frequency or wavelength which does not change.
State the use of echo by a bat, dolphin and fisherman.
Write the approximate value of the speed of sound in air.
Write the approximate value of the speed of sound in iron.
A type of electromagnetic wave has a wavelength of 50 Å. Name the wave and state one use of this type of wave.
Name the type of waves that are used for sound ranging. Why are radio waves not audible to us?
Waves produced on the surface of the water are formed to move with a velocity of 24 ms−1. If the wavelength of these waves equals 20 cm. find the
(i) frequency (no. of waves produced per second)
(ii) the time period (i.e. the time required to produce one wave) for these waves.
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 ______.
