Advertisements
Advertisements
प्रश्न
Why do astronauts talk to each other through radio telephone in space?
उत्तर
Sound can not travel through vacuum. There is no material medium in the space for propagation of sound. Hence astronauts talk to each other through radio telephone in space. In radio telephone, message of one astronauts reach to the other with the help of radio waves, which can travel through vacuum.
APPEARS IN
संबंधित प्रश्न
There is no atmosphere on moon. Can you hear each other on the moon's surface?
If you place your ear close to an iron railing which is tapped some distance away, you hear the sound twice. Explain why?
How does the following factor affect, if at all, the speed of sound in air:
Pressure of air
Complete the following sentence :
A longitudinal wave is composed of compression and ____________.
Can sound travel through vacuum?
Does sound require a material medium for transmission?
Compare approximately the speed of sound in air and steel.
Does light travel faster in air than in water? Why?
How will the following factors affect the speed of sound in air:
Pressure of air.
How will the following factors affect the speed of sound in air:
Temperature of air.
