Advertisements
Advertisements
प्रश्न
Does light travel faster in air than in water? Why?
Advertisements
उत्तर
Yes, light travels faster in the air than water. Because light does not require any medium for their propagation and they are not mechanical waves. The quantities which oscillate in light are mechanical and electric fields. And electric and magnetic fields decrease with the medium in between them. So, light travels faster in the air than water.
APPEARS IN
संबंधित प्रश्न
There is no atmosphere on moon. Can you hear each other on the moon's surface?
Explain the terms crest and trough in relation to a transverse wave.
Describe an experiment to show that in wave motion, only energy is transferred, but particles of medium do not move.
How is the frequency of a wave related to its time period?
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 speed of sound change with change in (i) amplitude and (ii) wavelength, of sound wave?
The correct statement is :
Can sound travel through vacuum?
State the main factors on which the speed of sound in a medium depends.
Is the speed of sound different in different media?
