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.
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
Is the speed of sound more in water or in steel?
Why cannot a sound be heard on the moon? How do astronauts talk to one another on the surface of moon?
The sound waves travel fastest :
Fill in the blank and explain.
Sound does not travel through ______.
Give scientific reasons:
As the sound wave propagates from one place to the other in air, the air itself is not required to move from one place to the other.
Answer the following question :
How does the speed of sound differ in different media?
Sound in air propagates in form of
How long will sound take to travel in (a) and iron rail and (b) air, both 3.3 km in length? Take speed of sound in air to be 330 m/s and in iron to be 5280 m/s.
The speed of sound is ______ in solids than in liquids
Rarefactions are the regions of ______ where particles are spread apart.
