Advertisements
Advertisements
प्रश्न
Write the relation between the refractive index and critical angle for a given pair of optical media?
Advertisements
उत्तर
`""^a μ_b= 1/(sin C)` where, a and b are the rarer and denser media respectively. C is the critical angle for the given pair of optical media.
APPEARS IN
संबंधित प्रश्न
A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incident is ______.
Total internal reflection occurs only when a ray of light passes from a ______ medium to a ______ medium.
In the following figure, show two rays A and B travelling from water to air. If the critical angle for water- air surface is 48°, complete the ray diagram showing the refracted rays for each. State conditions when the ray will suffer total internal reflection.

How is the critical angle of a material related to its refractive index?
Describe the construction and working of an optical fibre.
Observe the given figure and write appropriate phenomenon of light in the box.

Total internal reflection can take place only if light is travelling from ______.
A particle is projected such that the horizontal range and vertical height are equal. Then the angle of projection is :
What is a mirage? How does it occur?
A light is entering from one medium refractive index `("RI" =5/3)` to another medium at an angle 30°. The angle of refraction for other medium is sin-1 `(5/6)`. then the increase in angle of incidence is ______ such that the ray of light reflected back into the same medium.
