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प्रश्न
What name is given to those aircrafts which fly at speeds greater than the speed of sound?
उत्तर
Supersonic aircraft are aircraft that fly at speeds greater than the speed of sound.
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संबंधित प्रश्न
A sound wave travels at a speed of 339 m s−1. If its wavelength is 1.5 cm, what is the frequency of the wave? Will it be audible?
Describe an experiment to show that sound can travel in water.
Can sound travel through solids and liquids ? In which of these two does it travel faster ?
If you want to hear a train approaching from far away, why is it more convenient to put the ear to the track?
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?
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?
Fill in the blank with suitable word :
The speed of sound in a solid is ............... than the speed of sound in air.
If the speed of a wave is 340 m/s and its frequency is 1700 Hz, then λ for this wave in cm will be :
Helium gas is filled in two identical bottles A and B. The mass of the gas in the two bottles is 10 gm and 40 gm respectively. If the speed of sound is the same in both bottles, what conclusions will you draw?
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.
