Advertisements
Advertisements
प्रश्न
When sound propagates in air, it does not carry energy with it.
विकल्प
True
False
Advertisements
उत्तर
False.
APPEARS IN
संबंधित प्रश्न
The ratio of the amplitude of two waves is 3:4. What is the ratio of their Frequencies?
A person standing between two vertical cliffs and 480 m from the nearest cliff shouts. He hears the first echo after 3s and the second echo 2s later. Calculate:
1)The speed of sound.
2) The distance of the other cliff from the person
Smaller the membrane, .................. is the pitch.
Name the unit in which loudness of sound is measured.
Why is the loudness of the sound heard by a plucked wire increased when it is mounted on a sound board?
What is meant by the ‘pitch’ of a note? Does it depend on the loudness or ‘quality’ of the ‘note’? How is pitch ‘related’ with frequency?
Two waves of the same pitch have their amplitudes in the ratio 2 : 3.
(i) What will be the ratio of their loudness?
(ii) What will be the ratio of their frequencies?
What does the intensity of sound depend upon?
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 reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
