Advertisements
Advertisements
प्रश्न
What name is given to those aircrafts which fly at speeds greater than the speed of sound?
Advertisements
उत्तर
Supersonic aircraft are aircraft that fly at speeds greater than the speed of sound.
APPEARS IN
संबंधित प्रश्न
Write the approximate speed of sound in water .
Write the approximate speed of sound in steel.
What is the time-period of a tuning fork whose frequency is 200 Hz?
The maximum speed of vibrations which produce audible sound will be in :
The drawing shows a ship 800 m from a cliff. A gun is fixed on the ship. After 5 seconds the people at the front of the ship hear the sound of the gun again.
(a) What is the name of this effect ?
(b) What happens to the sound at the cliff ?
(c) How far does the sound travel in 5 seconds ?
(d) Calculate the speed of sound.
The Velocity of sound is high in gases than liquids.
The propagating disturbance that travels in a medium is called a ______.
The velocity of sound by a tuning fork frequency of 480 Hz is 340 ms Its wavelength is ______.
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.
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).
