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प्रश्न
Which of the following travels slowest in air and which one fastest? Supersonic aircraft, Light, Sound
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उत्तर
The waves which have the minimum and the maximum speed among the following:
Slowest – Sound.
Fastest – Light.
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संबंधित प्रश्न
Write true or false for a given statement.
Sound can travel in a vacuum.
Explain why, the flash of a gun shot reaches us before the sound of the gun shot.
Fill in the blanks with suitable words .
Wave speed in metres per second equals frequency in ............ multiplied by ..................... in ..................
The maximum speed of vibrations which produce audible sound will be in :
The speeds of sound in four different media are given below. Which of the following is the most likely speed in m/s with which the two under water whales in a sea talk to each other when separated by a large distance?
Nita heard the sound of lightning after 4 seconds of seeing it. What was the distance of the lightning from her?
(The velocity of sound in air is 340 m/s.)
Write the formula for speed of sound in a gas using Laplace correction.
Velocity of sound in the atmosphere of a planet is 500 ms–1. The minimum distance between the sources of sound and the obstacle to hear the echo should be
Air temperature in the Rajasthan desert can reach 46°C. What is the velocity of sound in air at that temperature? (V0= 331 ms–1)
Numerical problems:
Two persons are at opposite ends of a steel rod. One strikes the end of the rod with a stone. Find the ratio of time taken by the sound wave in the air and in steel to reach the second person. (Sound of speed in steel = 5960 ms-1, Sound of speed in air = 344 ms-1).
