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A plane wavefront is incident on a plane reflectingsurface at an angle of 30^(@). What angle will the reflected rays make with the reflecting surface ? |
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Answer» Solution :Here, `I = 30^(@)` According to the laws of reflection, `r = I = 30^(@)` :. the reflected WAVEFRONT will make an ANGLE of `30^(@)` with the plane surface. The refracted RAYS will make an angle of `(90^(@) + 30^(@)) = 120^(@)` with the plane surface. |
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