A ray of light is travelling in air is incident on the surface of a plastic slab at an angle. If the angle of refraction is 30 and refractive index of plastic is √3. Find the angle of incidence
A ray of light is travelling in air is incident on the surface of a plastic slab at an angle. If the angle of refraction is 30 and refractive index of plastic is √3. Find the angle of incidence
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