A ray of light strikes the glass salb at an angle of 50 degree with the surface of the slab what will be the angle of incidence
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ray of light strikes a glass slab at an angle of 50 what is the angle of incidence
The incidence angle is 50 degrees if its measured from the normal (perpendicular) to the slab. If its measured from the glass slab surface the the incidence angle is 40 degrees (the complement)
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