State the snails law of reflection of light ?

1.	State the snails law of reflection of light ?
Answer» *The* *ratio* of *the* *SINE* of *the* *angle* of *incidence* to *the* *sine* of *the* *angle* of *refraction* *for* *the* *given* *pair* of *MEDIA* is *constant* I.e. *Sin* i/*Sin* R = *Constant. Where* i *and* r *stand* *for* *the* *angle* of *incidence* *and* *angle* of *refraction* *RESPECTIVELY. This* *constant* is *called* *refractive* *index* of *the* *medium* *and* is *denoted* by *meu. meu* = *sin* i/*sin* r *and* *this* *relation* is *called* *SNELL's* *law*.

Answer»

The ratio of the SINE of the angle of incidence to the sine of the angle of refraction for the given pair of MEDIA is constant I.e.

Sin i/Sin R = Constant.

Where i and r stand for the angle of incidence and angle of refraction RESPECTIVELY. This constant is called refractive index of the medium and is denoted by meu.

meu = sin i/sin r and this relation is called SNELL's law.

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