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प्रश्न
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उत्तर
Velocity of sound = `"distance travelled"/"time taken" = (2"d")/"t"`
∴ Velocity of sound = `(2 xx 480)/2` = 480 m/s
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संबंधित प्रश्न
What are wavelength, frequency, time period and amplitude of a sound wave?
Which wave property determines loudness?
A stone is dropped on the surface of water in a pond. Name the type of waves produced.
In an experiment, Anhad studies sound waves. He sets up a loudspeaker to produce sound as shown below :
Anhad adjusts the signal to the loudspeaker to give a sound of frequency 200 Hz.
(a) What happens to the air in-between Anhad and the loudspeaker ?
(b) Explain how Anhad receives sound in both ears.
We can distinguish between the musical sounds produced by different singers on the basis of the characteristic of sound called :
An observer sitting in line of two tanks watches the flashes of two tanks firing at each other at the same time, but he hears the sounds of two shots 2s and 3.5s after seeing the flashes. If distance between the two tanks is 510m, find the speed of sound.
Match the pairs.
| Group ‘A’ | Group ‘B’ |
| (a) Flute | (1) Frequency less than 20 Hz |
| (b) Frequency | (2) Frequency more than 20000 Hz |
| (c) Sound level | (3) Vibrations in the air |
| (d) Ultrasonic sound | (4) Measured in Hz |
| (e) Infrasonic sound | (5) Decibel |
Name the Sound of the Frequency Given Below:
200 Hz
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Two sound waves X and Y have the same amplitude and the same wave pattern but their frequencies are 60 Hz and 120 Hz respectively, then ______.
