Advertisements
Advertisements
प्रश्न
How are critical angles related to the refractive index of the medium?
Advertisements
उत्तर

संबंधित प्रश्न
State the conditions required for total internal reflection of light to take place
The figure shows a ray of light falling normally on the face AB of an equilateral glass prism having refractive index`3/2`, placed in water of refractive index `4/3`.Will this ray suffer total internal reflection on striking the face AC? Justify your answer.

Write the relation between the refractive index and critical angle for a given pair of optical media?
Define critical angle for a given medium.
A ray of light is incident as a normal ray on the surface of separation of two different mediums. What is the value of the angle of incidence in this case?
Answer the following question.
Under what conditions are total internal reflection possible? Explain it with a suitable example.
Describe the construction and working of an optical fibre.
Solve Numerical example.
From the given data set, determine angular dispersion by the prism and dispersive power of its material for extreme colours. nR = 1.62 nV = 1.66, δR = 3.1°
The angle of minimum deviation produced by a thin glass prism in air is 'δ'. If that prism is immersed in water, the angle of minimum deviation will be ______.
( aμg = refractive index of glass w.r.t, air aμw = refractive index of water w.r.t. air)
Which of the following is used in optical fibres?
