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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 village
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उत्तर
The person would hear a very little noise in village traffic. Hence, he can conclude that he was in a village.
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संबंधित प्रश्न
Write true or false for a given statement.
Sound can travel in a vacuum.
Describe an experiment to show that sound can travel in a solid.
Write the approximate speed of sound in air.
Which term is used to denote a speed greater than the speed of sound?
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The speed of sound in air at 0°C is 332 m/s. If it increases at the rate of 0.6 m/s per degree, what will be the temperature when the velocity has increased to 344 m/s?
Numerical problem.
A stone is dropped from the top of a tower 750 m high into a pond of water at the base of the tower. Calculate the number of seconds for the splash to be heard? (Given g = 10 m s–2 and speed of sound = 340 m s–1)
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?
The speed of sound in a gaseous medium depends on ______.
Numerical problems:
A Sound wave travels at a speed of 344 ms-1. If the wavelength is 1.5 cm, what is the frequency of the Wave? Will it be audible?
