ICSE /Class 8
Physics MCQ Based On Loudness and amplitude
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ICSE Class 8 Physics Loudness and amplitude
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0dB is for pin drop.
A sound wave's amplitude relates to changes in pressure. The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases.
L = (A)2
The factors on which loudness depends.
A sound wave's amplitude relates to changes in pressure. The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases.
Unit of loudness.
Having loudness of 0dB.
Refer to the formula for loudness.
A sound wave's amplitude relates to changes in pressure. The sound is perceived as louder if the amplitude increases, and softer if the amplitude decreases.
The amplitude mentioned in the question is loud noise.
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