imagine we have to mirrors, if we shine a ray to first mirror ; how can we calculate the diviation angle from second mirror ?

Question

souvik · Answer

we have to know first the angle between two mirrors ,angle of incident....

anonymous · Answer

well angle is 30 and shinig angel is 60

souvik · Answer

is the angle of incident is 60 degree? and the angle between two mirrors is 30 degree?

anonymous · Answer

angle of deviation is the angle through which the ray has deviated. let's take an example. |dw:1373053487413:dw|
the ray was first directed from the point A to the point N. but it gets reflected at the point M and is now the reay is directed to B. 
the angle of deviation is delta. meaning, if the ray was not obstructed at the point M, it had gone towards N. but due tot he mirror, it gets deflected a point M.