CBSE Class 9 Science Question 22 of 33

Sound — Question 1

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Question

Question 1

Which wave property determines

(a) loudness,

(b) pitch?

Answer

(a) Loudness is determined by amplitude. More the amplitude, louder is the sound and vice versa.

(b) Pitch is determined by frequency. The faster the vibration of the source, the higher is the frequency and the higher is the pitch.