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A plane mirror lies face up making an angle of 15degree with horizontal . a ray shines down vertically on the mirror.what is the angle of incidence? What will the angle between the reflected ray and the horizontal line? |
| Answer» A plane mirror lies face up making an angle of 15degree with horizontal . a ray shines down vertically on the mirror.what is the angle of incidence? What will the angle between the reflected ray and the horizontal line? | |