Which of the following statements is/are false? a. The loudness of sound depends upon the amplitude of vibrations of the vibrating object. b. The loudness of sound is inversely proportional to the square of amplitude of vibrations of the sound producing object. c. The pitch of sound is directly proportional to its frequency.

This is the correct option, as the statement is false. The loudness of sound is directly proportional to the square of amplitude of vibrations of the sound producing object. If the amplitude of vibrations is doubled. then the loudness will become four times and if the amplitude of vibrations is halved, then the loudness will become one-fourth.