Advertisements
Advertisements
प्रश्न
What is the refractive index of water
Advertisements
उत्तर
1.33
संबंधित प्रश्न
A ray of light passes from water to air. How does the speed of light change?
Which colour of light travels fastest in any medium except air?
Why is the ratio of the velocities of light of wavelengths 4000Å and 8000Å in vacuum 1: 1?
A ray of light strikes the surface of a rectangular glass block such that the angle of incidence in
air is 0°.
In each case, draw diagram to show the path taken by the ray as it passes through the glass block and emerges from it.
“A ray of light incident on a rectangular glass slab immersed in any medium emerges parallel to itself.” Draw labelled ray diagram to justify the statement.
Define the term refractive index of a medium. What do you understand by the statement 'the refractive index of glass is 1.5 for white light'?
A fish swimming in a pond seems nearer than it really is. Explain.
The refractive index of air with respect to glass is defined: as gµa = sin i/sin r
Write down a similar expression for aµg in terms of angle i and r.
The velocity of light in diamond is 121000 kms-1. What is its refractive index?
