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प्रश्न
Write the relation between the angle of incidence and the angle of refraction for a medium.
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उत्तर
The relationship between the angles of incidence and refraction is given by Snell's law.
According to this law, the ratio of the sines of the angles of incidence and refraction is constant for a given pair of media.
`"(Sineof angle of incidence (i))"/"(Sine of angle of refraction (r)"="constant (n)"`
This constant is known as refractive index.
संबंधित प्रश्न
In your laboratory you trace the path of light rays through a glass slab for different values of angle of incidence (∠i) and in each case measure the values of the corresponding angle of refraction (∠r) and angle of emergence (∠e). On the basis of your observations your correct conclusion is:
(a) ∠i is more than ∠r, but nearly equal to ∠e
(b) ∠i is less then ∠r, but nearly equal to ∠e
(c) ∠i is more than ∠e, but nearly equal to ∠r
(d) ∠i is less than ∠e, but nearly equal to ∠r
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.
What is meant by the statement the critical angle for diamond is 24°?
Observe the figure and write accurate conclusion regarding refraction of light.
Does the depth of a tank of water appear to change or remain the same when viewed normally from above?
During sunset and sunrise, the sun is seen when it is slightly below the horizon. Give reason.
What do you understand by the deviation produced by a prism?
How does the angle of deviation produced by a prism depend on the angle of incidence of light at the prism surface? Draw a graph to illustrate your answer.
