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प्रश्न
What is an echo
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उत्तर
The sound heard after reflection from a distant obstacle after the original sound has ceased is called an echo.
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संबंधित प्रश्न
When sound propagates in air, it does not carry energy with it.
Obtain relationship between the time period and frequency.
How is loudness related to the amplitude of wave?
If the amplitude of a wave is doubled, what will be the effect on its loudness?
State three factors on which loudness of sound heard by a listener depends.
State three factors on which loundess of sound heard by a listener depends.
The frequencies of notes given by flute, guitar and trumpet are respectively 400 Hz, 200 Hz and 500 Hz. Which one of these has the highest pitch?
Which characteristics of sound will change if there is a change in its amplitude and its waveform.
What is meant by the ‘loudness’ of a sound? How is it related to the intensity?
The loudness of a sound depends on its pitch.
