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प्रश्न
When sound propagates in air, it does not carry energy with it.
पर्याय
True
False
उत्तर
False.
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संबंधित प्रश्न
In which units is the loudness of sound measured?
State the safe limit of sound level in terms of decibel for human hearing.
What is longitudinal wave?
Explain the mechanism of the formation of a longitudinal wave when the source vibrates in the air.
State three factors on which loundess of sound heard by a listener depends.
Name the factors which determine the quality of a note.
What is meant by the ‘loudness’ of a sound? How is it related to the intensity?
Give a scientific reason.
We can hear the movement of a mosquito's wings but we cannot hear the movement of our hands.
Give scientific reason.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
