Advertisements
Advertisements
Question
Which characteristics of sound will change if there is a change in its amplitude and its waveform.
Solution
Amplitude changes – Loudness changes.
APPEARS IN
RELATED QUESTIONS
The time period of a wave is 2 s. Its frequency is ..........
If a drum is beaten hard, its loudness ................
How does sound travel in air?
State three factors on which loudness of sound heard by a listener depends.
Two identical guitars are played by two persons to give notes of the same loudness and pitch. Will they differ in quality? Give reason for your answer.
How is the pitch of sound in a guitar changed if (a) thin wire is used, (b) wire under less tension is used?
Name musical instrument, one in each case, which produces its notes by using the following. In each case state the method used to produce notes of different pitches and loudness.
(a) A vibrating string.
(b) A vibrating column air.
(c) Vibration of any other body.
When a gun is fired at a distance, why is it that the flash is seen almost instantaneously while the sound is heard a little later?
What is the noise? Give an example.
Two waves of the same pitch have their amplitudes in the ratio 2 : 3.
(i) What will be the ratio of their loudness?
(ii) What will be the ratio of their frequencies?