Advertisements
Advertisements
प्रश्न
उत्तर
APPEARS IN
संबंधित प्रश्न
What is sound ?
How is it possible to recognize a person by his voice without seeing him?
A stone is dropped on the surface of water in a pond. Name the type of waves produced.
What is the vacuum? Explain why, sound cannot travel through vacuum?
Give a scientific reason.
If you were both on the moon, your friend will not be able to hear you call.
Can we produce sound in vacuum?
The sound produced by a thunderstorm is heard 10 s after the lightning is seen. Calculate the approximate distance of the thunder cloud. (Given the speed of sound = 340 m s–1.)
Lightning can be seen at the moment when it occurs. Paheli observes lightning in her area. She hears the sound 5 s after she observed lightning. How far is she from the place where lightning occurs?
(speed of sound = 330 m/s).
