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Why do we get a spectrum of seven colors when white light is dispersed by a prism?
Write the relation between the angle of incidence and the angle of refraction for a medium.
A ray of light is passing from a transparent medium 1 to another transparent medium 2 (i) Speed up (ii) slows down. In each case, state whether the refractive index of medium 2 is equal to, less than or greater than the refractive index of medium 1.
A total reflecting right angled isosceles prism can be used to deviate a ray of light through:
(a) 30° (b) 60° (c) 75° (d) 90°.
“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.
Observe the figure and write accurate conclusion regarding refraction of light.
In the fig. name the ray which represents the correct path of light while passing through a glass block.
A ray of light passes from water to air. How does the speed of light change?
Name the material for which the refractive index is found to be maximum.
In the diagram alongside a ray of light, PQ is incident normally on one face AB of an equilateral glass prism. What is the angle of incidence at the faces AB and AC?
