Advertisements
Advertisements
प्रश्न
An observer A fires a gun and another observer B at a distance 1650 m away from A hears its sound. If the speed of sound is 330 m s-1, find the time when B will hear the sound after firing by A.
Advertisements
उत्तर
Distance between the two observers = 1650 m
Speed of sound = 330 m/s
Time in which B hears the sound = Distance / speed = 1650/330 = 5s
Thus, B will hear the sound 5s after the gun is shot.
APPEARS IN
संबंधित प्रश्न
A person is listening to a tone of 500 Hz sitting at a distance of 450 m from the source of the sound. What is the time interval between successive compressions from the source?
Write true or false for a given statement.
Female voice is shriller than the male voice.
What is the vacuum? Explain why, sound cannot travel through vacuum?
What do you mean by the term frequency of a wave? State its S.I. unit.
An observer sitting in line of two tanks watches the flashes of two tanks firing at each other at the same time, but he hears the sounds of two shots 2s and 3.5s after seeing the flashes. If distance between the two tanks is 510m, find the speed of sound.
An observer X is on an island 5500 m from a vertical cliff on the shore. A ship Y is anchored between the island and the Cliff. A blast on the ship’s siren is heard twice by X, the interval being 5s. [Velocity of sound = 330 ms−1]
(i) Find the distance of the ship from the island.
(i) Find the distance of the cliff from the ship.
The sound waves are reflected from an obstacle into the same medium from which they were incident. Which of the following changes?
Name two musical instruments which produce sound by vibrating strings.
What types of medium are required for sound to travel?
