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प्रश्न
Can you hear each other in a dark room?
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उत्तर
Yes, we can hear in the darkroom.
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संबंधित प्रश्न
Write true or false for a given statement.
A sound is a form of energy.
The speed of sound in air at 0°C is nearly :
An observer X is on an island 5500 m from a vertical cliff on the shore. A ship Y is anchored between the island and the Cliff. A blast on the ship’s siren is heard twice by X, the interval being 5s. [Velocity of sound = 330 ms−1]
(i) Find the distance of the ship from the island.
(i) Find the distance of the cliff from the ship.
How do the following factor affect the speed of sound in air?
Pressure in air.
How do the following factor affect the speed of sound in air?
Temperature of air
What is sound? Explain with example how does sound travel in a medium.
Explain how the principle of echo is used by
The bat during its flight at night
Sound travels in air:
A key of a mechanical piano struck gently and then struck again but much harder this time. In the second case
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.)
