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प्रश्न
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संबंधित प्रश्न
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.
What is a megaphone ? Name the principle on which a megaphone works.
Draw a labelled diagram to show the multiple reflections of sound in a part of the stethoscope tube.
Define the term Frequency (as applied to sound waves)
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.
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?
The direction of the incident sound, the direction of reflected sound, and the normal are in different Planes.
