Question

laws of reflection and refraction were given by

Answer 1

Answer:

Popularly known as SNELL'S LAW it is n1*sin i=n2*sin e where i is same as above,e is angle of refracted beam with normal. The INCIDENT ray,REFLECTED ray, REFRACTED ray and the NORMAL at the point of incidence all lie in the same plane

Answer 2

Answer:

Snell's law (also known as Snell–Descartes law and the law of refraction)

The Ancient Greek mathematician Euclid described the law of reflection in about 300 BCE

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