Advertisements
Advertisements
प्रश्न
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?
पर्याय
340
5170
1280
1530
Advertisements
उत्तर
The speed of water in sound is 1,530 m/s.
(d) 1,530 m/s.
APPEARS IN
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.
Describe an experiment to show that sound can travel in a solid.
Calculate the frequency of a wave whose time-period is 0.02 s.
Explain why, the flash of a gun shot reaches us before the sound of the gun shot.
When we put our ear to a railway line, we can hear the sound of an approaching train even when the train is far off but its sound cannot be heard through the air. Why?
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 in solid is ______ than the velocity of sound in air.
An ultrasonic wave is sent from a ship towards the bottom of the sea. It is found that the time interval between the transmission and reception of the wave is 1.6 seconds. What is the depth of the sea, if the velocity of sound in the seawater is 1400 ms–1?
The speed of sound in a gaseous medium depends on ______.
