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प्रश्न
A man is kidnapped, blindfolded and imprisoned in a big room. How could the man tell if he was in : a city
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उत्तर
The person would hear a lot of noise in heavy city traffic. Hence, he can conclude that he was in a city.
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संबंधित प्रश्न
Flash and thunder are produced simultaneously. But thunder is heard a few seconds after the flash is seen, why?
A stone is dropped from the top of a tower 500 m high into a pond of water at the base of the tower. When is the splash heard at the top? Given, g = 10 m s−2 and speed of sound = 340 m s−1.
Write the approximate speed of sound in water .
During a thunderstorm, the sound of a thunder is heard after the lightning is seen. Why?
A worker lives at a distance of 1.32 km from the factory. If the speed of sound in air be 330 m/s, how much time will the sound of factory siren take to reach the worker?
Why does the flash of lighting reach earlier than the sound of thunder?
The velocity of sound in air at a particular temperature is 330 ms–1. What will be its value when temperature is doubled and the pressure is halved?
The Velocity of sound is high in gases than liquids.
The thunder of cloud is heard 9.8 seconds later than the flash of lightning. If the speed of sound in air is 330 ms–1, what will be the height of the cloud?
Assertion: The speed of sound in air is less than the speed of sound in solid.
Reason: If we increase the temperature of medium, the speed of sound increases in any medium.
