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प्रश्न
What is loudness of sound? What factors does it depend on?
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उत्तर
A loud sound has high energy. Loudness depends on the amplitude of vibrations. In fact, loudness is proportional to the square of the amplitude of vibrations.
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संबंधित प्रश्न
What is sound ?
Differentiate between a high pitch sound and a low pitch sound.
Name the characteristic which differentiates two sounds of the same pitch and same loudness.
List four substances which are good absorbers of sound.
Explain the terms 'crests' and troughs' of a wave? What type of waves consist of crests and troughs?
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.
Complete the following sentences :
Sound cannot travel through __________, but it requires a ___________.
What is the ratio of speed of light to speed of sound?
Sound can travel through solids, gases, liquids, and even vacuum.
