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Why is the angle of deviation twice the angle of incidence?

Dhanusha , 9 Years ago
Grade 12
anser 1 Answers
Umakant biswal
Deviation of Light by a Plane-Mirror. A ray of light that is incident on to the surface of a plane-mirror is reflected with the angle of incidence equal to the angle of reflection. ... The total angle between the straight-line path and the reflected ray is twice the angle of incidence. 
as its a perpendicular relationship we have between angle of incidence and normal to the point of incidence , so, its twice , 
there are even mathematical proof , if u want then let me know . 
HOPE IT CLEARS ..

 
Last Activity: 9 Years ago
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