Advertisements
Advertisements
प्रश्न
What is the speed of sound :
(a) in air?
(b) in water?
(c) in iron?
Advertisements
उत्तर
Speed of sound in
(a) air is 344 m/s,
(b) water is 1,500 m/s, and
(c) iron is 5,130 m/s.
APPEARS IN
संबंधित प्रश्न
Write the approximate speed of sound in water .
Calculate the speed of a sound wave whose frequency is 2 kHz and wavelength 65 cm.
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?
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.
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?
The velocity of sound is independent of temperature.
The velocity of sound by a tuning fork frequency of 480 Hz is 340 ms Its wavelength is ______.
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).
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?
