Advertisements
Advertisements
प्रश्न
A boy fires a gun and another boy at a distance hears the sound of fire 2.5s after seeing the flash. If the speed of sound in air 340 m/s, find distance between the boys.
उत्तर
Speed of sound in air (V) = 340 m/s
Time in which sound of fire is heard after flash is seen (t) = 2.5s
Thus, distance between flash and observer = V x t = (340 x 2.5) = 850 m
APPEARS IN
संबंधित प्रश्न
In which medium sound travels fastest : air, water or steel?
Explain why, a ringing bell suspended in a vacuum chamber cannot be heard outside.
Describe an experiment to show that sound cannot pass through vacuum.
Sound in air propagates in form of
Describe an experiment to prove that a material medium is necessary for the propagation of sound.
What is the approximate value of the speed of sound in air at N.T.P.?
Does the speed of sound in a gas depend on the pressure of the gas?
What are the requisites of the medium for the propagation of sound? Briefly, explain them.
Can we hear sounds of frequencies:
Less than 20 Hz
How are bats able to avoid obstacles in their way?
