Advertisements
Advertisements
प्रश्न
How is the critical angle of a material related to its refractive index?
Advertisements
उत्तर
Relation of critical angle and refractive index:
μ = `1/sin "C"`
Where μ = refractive index of the material and C = critical angle.
संबंधित प्रश्न
State the conditions required for total internal reflection of light to take place
The diagram below shows a point source P inside a water container. Four rays A, B, C, D starting from the source P are shown up to the water surface
1) Show in the diagram the path of these rays after striking the water surface.
The Critical Angle for the water-air surface is 48°.
2) Name the phenomenon which the rays B and D exhibit.
State the relation between the critical angle and the absolute refractive index of a medium.
Prove the statement.
A rainbow is the combined effect of the refraction, dispersion, and total internal reflection of light.
(i) Define critical angle.
(ii) State one important factor which affects the critical angle of a given medium.
Name the principle on the basis of which optical fibres work.
Images formed by totally reflecting prisms are brighter than the image formed by ordinary reflected light, why?
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°
Which one of the following is NOT the correct formula for refractive index of glass w.r.t. air (aμg) (i = angle of incidence, r = angle of refraction)
Small air bubbles rising up a fish tank appear silvery when viewed from some particular angle is due to the ______.
