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प्रश्न
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उत्तर
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संबंधित प्रश्न
Describe an experiment to show the production of sound having low and high pitch.
What are longitudinal waves and transverse waves? Explain with the help of labelled diagrams.
How does the velocity of a wave vary with temperature?
Distinguish between compression and rarefaction.
On placing your ear close to an iron railing which is tapped some distance away, sound is heard twice. Explain, why?
The smoke from the gun barrel is seen 2 second before the explosion is heard. If the speed of sound in air is 350 ms-1, calculate the distance of observer from the gun.
The sound produced by a thunderstorm is heard 10 s after the lightning is seen. Calculate the approximate distance of the thunder cloud. (Given the speed of sound = 340 m s–1.)
Give scientific reasons.
In earlier times, people used to listen for the arrival of a distant train by putting their ear to the rail.
Find the odd one out.
