2016-03-01T19:25:24+05:30

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1(the incident ray, the refracted ray and the normal at the point of incidence all lie in the same plane 2)ratio of sine of angle of incidence to the sine of angle of refraction is a constant.this is also called Snell's law
2016-03-01T19:28:44+05:30

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There are two laws of reflection 1) the angle of incidence is always equal to angle of reflection 2)the incident line, reflected line nd normal all lie in same of plane
sorry, these laws are of reflection