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Refraction and Laws of Refraction

A ray of mono...

Question

A ray of monochromatic light passes from medium (I) to medium (2). If the angle of incidence in medium 1 is θ and the corresponding angle of refraction on medium 2 is θ/2, which medium is optically denser? Give reason.

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Q. When a ray of light travels from an optically more denser medium to an optically less denser medium, the angle of incidence is always .......... than the angle of refraction.

Q. When a ray of light passes from one medium to another medium, the angle incidence is always different from the angle of refraction.

Q. A ray of light passes from medium 1 to medium 2. In medium 1, it strikes at an angle of 15° from the normal. Whereas in medium 2, it makes an angle of 30° from the normal after the refraction. Which medium is a denser medium?

Q. Light from a denser medium 1 passes to a rarer medium 2. When the angle of incidence is

θ

, the partially reflected and refracted rays are mutually perpendicular. The critical angle will be

Q. A light ray travels from optically denser medium to optically rarer medium, if the angle of incidence and refraction at point of incidence are

∠ i

∠ r

respectively, then find the angle of deviation in terms of

∠ i

∠ r

.

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