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प्रश्न
The unit of loudness is _______.
विकल्प
cm
second
hertz
decibel
उत्तर
The unit of loudness is decibel.
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संबंधित प्रश्न
The lower the frequency of vibration, the higher is the pitch.
State one important property of waves used for echo depth sounding.
State three factors on which loudness of sound heard by a listener depends.
Name three characteristics of a musical sound.
Name the unit in which loudness of sound is measured.
Draw a diagram to show the wave pattern of high pitch note and a low pitch note, but of the same loudness.
Give scientific reason for the following:
When a nail is hammering appears to get higher and higher in pitch.
Give a scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
