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प्रश्न
State the safe limit of sound level in terms of decibel for human hearing.
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उत्तर
The safe limit of sound level for human hearing is 30 decibels (30 dB).
संबंधित प्रश्न
If the amplitude of vibration is large, sound is feeble.
Name one property of waves that do not change when the wave passes from one medium to another.
Decibel is the unit of pitch of a sound.
What is longitudinal wave?
Explain the mechanism of the formation of a longitudinal wave when the source vibrates in the air.
Name the characteristic of sound related to its frequency
Two waves of the same pitch have amplitudes in the ratio 1 : 3 What will be the ratio of their
- loudness,
- pitch?
Name the unit in which loudness of sound is measured.
Name the factors which determine the loudness of a note.
The loudness of a sound depends on its pitch.
