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Question
State 1st and 2nd law of refraction.
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Solution
Two laws
of refraction are as follows.
- The incident ray, the refracted ray and the normal to the interface
of two transparent media at the point of incidence, all lie in the
same plane.
- The ratio of sine of angle of incidence to the sine of angle of
refraction is a constant, for the light of a given colour and for
the given pair of media. This law is also known as Snell’s law of
refraction. (This is true for angle 0o<i<90o)
Two laws of refraction are as follows.
- The incident ray, the refracted ray and the normal to the interface of two transparent media at the point of incidence, all lie in the same plane.
- The ratio of sine of angle of incidence to the sine of angle of refraction is a constant, for the light of a given colour and for the given pair of media. This law is also known as Snell’s law of refraction. (This is true for angle 0o<i<90o)
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