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प्रश्न
Define sound ranging.
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उत्तर
The process by which bats and dolphins detect the presence of an obstacle by hearing the echo of the sound produced by them is called sound ranging.
संबंधित प्रश्न
Fill in the blank.
The pitch of a sound depends on its ________.
In fig. 2 two musical notes of the same pitch and same loudness are played on a violin and on a piano. Their wave forms are as shown in the diagram below. Explain why the wave patterns are different.
The diagram given below shows a displacement distance graph of a wave. If the velocity of wave is 160 ms-1, calculate:
- wavelength
- frequency
- amplitude.
What causes sound in air?
How do the following factor affect the speed of sound in air?
Pressure in air.
Sound is a ______ wave and needs a material medium to travel.
Why is the ceiling and wall behind the stage of good conference halls or concert halls made curved?
Unwanted sounds are called ______.
