Advertisements
Advertisements
प्रश्न
If the amplitude of a wave is doubled, what will be the effect on its loudness?
If the amplitude of a wave is doubled, how is its loudness affected?
Advertisements
उत्तर
Loudness will be four times because loudness is directly proportional to the square of amplitude.
संबंधित प्रश्न
When sound propagates in air, it does not carry energy with it.
Which of the following determines the loudness of a sound wave?
How does the two sounds of same loudness and same pitch produced by different instruments differ? Draw diagrams to illustrate your answer.
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.
How does frequency affect a musical sound?
Name the factors which determine the pitch of a note.
Draw a diagram to show the waveforms of a pure note and a musical note, of the same pitch and same loudness.
The frequency of the stretched string of a fixed length is f when it is plucked in the middle. Where should it be plucked so that string vibrates with frequency (i) 2f, (ii) 3f?
Draw diagrams to show these vibrations and name them.
If ______ of sound is decreased, its loudness also decreases.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
