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प्रश्न
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संबंधित प्रश्न
Displacement distance graph of two sound waves A and B, travelling in a medium, are as shown in the diagram below.
Study the two sound waves and compare their:
1) Amplitudes
2) Wavelengths
State the use of echo by a bat, dolphin and fisherman.
What is a bulb horn ? Name the principle on which a bulb horn works.
Define the term Frequency (as applied to sound waves)
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?
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?
Why is an echo not heard when the distance between the source of sound and reflection body is less than 10 m?
What is mean by the reflection of sound?
