Advertisements
Advertisements
Question
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.
Advertisements
Solution
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
RELATED QUESTIONS
Name one solid, on liquid and one gas through which sound can travel.
Is the speed of sound more in water or in steel?
In which medium sound travels faster : air or iron?
When we open a gas tap of a few seconds, the sound of escaping gas is heard first but the smell of gas comes later. Why?
The frequency of the sound emitted by the loudspeaker is 1020 Hz. Calculate the wavelength of the sound wave in air in cm where its velocity is 340 m/s.
Explain the experiment, with a neat diagram, to prove the following:
'Sound needs material medium for propagation.'
Answer the following question :
How does the speed of sound differ in different media?
Write the answer in your own words.
Explain with the help of practical examples how sound is propagated through solids.
How are bats able to avoid obstacles in their way?
______ is the distance between two consecutive particles.
