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  • State the laws that are followed when light is refracted by rectangular glass slab.

State the laws that are followed when light is refracted by a rectangular glass slab. 

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The laws related to reflection in a rectangular slab are-

  1. The incident ray, the refracted ray, and the normal to the surface all lie in the same plane at the point of incidence.
  2. The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant for a given pair of media: $$
    \frac {\text{sin i}} {\text{sin r}} = \text {constant (refractive index)}
    $$
Posted by

Saniya Khatri

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