Question

Which of the following statements is correct?

(a) Pitch of the sound increases with increase in frequency

(b) Pitch of the sound decreases with increase in frequency

(c) Decibel is equal to 1/100 of bel

(d) Increase in the amplitude of the sound decreases the intensity

The question was asked in unit test.

My enquiry is from Acoustics in portion Acoustics and Ventilation of Construction & Building Materials

Answer 1

Correct choice is (a) Pitch of the sound increases with increase in frequency

Easy explanation: Pitch of the sound increases with an increase in frequency. Decibel is equal to 1/10 of bel. An increase in the amplitude of the sound increases the intensity.