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प्रश्न
What is sound? How is it produced?
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उत्तर
Sound is a form of energy that produces the sensation of hearing in our ears. Sound is produced by a vibrating body.
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संबंधित प्रश्न
How are the wavelength and frequency of a sound wave related to its speed?
Write true or false for a given statement.
Sound can only be produced by vibrating bodies.
Select the correct alternative :
We can hear sound of frequency
Select the correct alternative :
Wavelength is measured in
The longitudinal waves travel in a coiled spring at a rate of 4 m/s. The distance between two consecutive compressions is 20 cm. Find :
(i) Wavelength of the wave (ii) Frequency of the wave
Define sound ranging.
What is the effect of temperature and pressure on the speed of sound in a gas?
The sound produced by a thunderstorm is heard 10 s after the lightning is seen. Calculate the approximate distance of the thunder cloud. (Given the speed of sound = 340 m s–1.)
Lightning can be seen the moment it occurs. Paheli observes lightning in her area. She hears the sound 5 s after she observed lightning. How far is she from the place where lightning occurs? (speed of sound = 330 m/s).
