- Pitch is the perceptual property that allows sounds to be ordered on a frequency-related scale, or more commonly, pitch is the quality that makes it possible to judge sounds as "higher" and "lower". - Loudness is the subjective perception of sound pressure. It is related to the intensity of the sound wave, which in turn is proportional to the square of the amplitude. - Frequency and amplitude are independent physical characteristics of a wave.
The following six (6) items consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below. Statement I : The pitch of the sound wave depends upon its frequency. Statement II : The loudness of the sound wave depends upon its amplitude.
Asked in UPSC NDA 2 2018 · Topic: Sound (Characteristics of Sound: Pitch, Loudness (Intensity, Decibel Scale), and Quality (Timbre))
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Answer: B. Both the statements are individually true but Statement II is not the correct explanation of Statement I
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