Question

(a) How can you show that a sounding tabla is vibrating?

(b) On what factor does the loudness of a sound depend?

Answer 1

(a) In musical instruments like tabla, the sound is produced only when the membrane or the string vibrates.
- These vibrations create mechanical waves that the human ears sense as sound waves.
- As the production of sound is possible only when there is vibration in the membrane, hence, if the tabla is making a sound, it is concluded that it is vibrating.


(b) The loudness of a sound depends on the amplitude of the vibration producing that sound. Greater is the amplitude of vibration, louder is the sound produced by it. The amplitude of the sound depends upon the force with which an object is made to vibrate.