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प्रश्न
Decibel is the unit of pitch of a sound.
पर्याय
True
False
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उत्तर
False.
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संबंधित प्रश्न
When sound travels in form of a wave
The safe limit of loudness of audible sound is
If the amplitude of a wave is doubled, what will be the effect on its loudness?
- Which of the following quality determines the loudness of a sound wave?
- wavelength
- frequency and
- amplitude
- How is loudness related to the quantity mentioned above in part (a)?
How does the wave pattern of a loud note differ from a soft note? Draw a diagram.
Why is the loudness of the sound heard by a plucked wire increased when it is mounted on a sound board?
The frequency of the stretched string of a fixed length is f when it is plucked in the middle. Where should it be plucked so that string vibrates with frequency (i) 2f, (ii) 3f?
Draw diagrams to show these vibrations and name them.
Two waves of the same pitch have their amplitudes in the ratio 2 : 3.
(i) What will be the ratio of their loudness?
(ii) What will be the ratio of their frequencies?
What is acoustics?
