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प्रश्न
The unit of loudness is _______.
पर्याय
cm
second
hertz
decibel
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उत्तर
The unit of loudness is decibel.
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संबंधित प्रश्न
Name the phenomenon that causes a loud sound when the stem of a vibrating tuning fork is kept pressed on the surface of a table.
In which units is the loudness of sound measured?
Name and define the characteristic which enables one to distinguish two sounds of same loudness, but of different frequencies, given by the same instrument.
State the factors that determine
(a) the pitch of a note.
(b) the loudness of the sound heard.
(c) the quality of the note.
Two waves of the same pitch have amplitudes in the ratio 1 : 3 What will be the ratio of their
- loudness,
- pitch?
Draw a diagram to show the wave pattern of high pitch note and a low pitch note, but of the same loudness.
Two identical guitars are played by two persons to give notes of the same pitch. Will they differ in quality? Give a reason for your answer.
Which characteristics of sound will change if there is a change in its amplitude and its waveform.
Draw a diagram to show the waveforms of a pure note and a musical note, of the same pitch and same loudness.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
