Advertisements
Advertisements
प्रश्न
What is the noise? Give an example.
Advertisements
उत्तर
Noise is a harsh and unpleasant sound produced by a body making a succession of irregular and discontinuous disturbances, e.g., a sound produced by a stone thrown on a thin sheet, the thunder of lightning, etc.
संबंधित प्रश्न
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:
- The speed of sound.
- The distance of the other cliff from the person
What is longitudinal wave?
State three factors on which loudness of sound heard by a listener depends.
Two waves of the same pitch have amplitudes in the ratio 1 : 3 What will be the ratio of their
- loudness,
- pitch?
If the amplitude of a wave is doubled, what will be the effect on its loudness?
How does the wave pattern of a loud note differ from a soft note? Draw a diagram.
Name the subjective property of light related to its wavelength.
The same musical note when played on a piano and when played on a flute sounds different.
The loudness of a sound depends on its pitch.
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
