Question

incident ray MP and reflected ray QN are parallel to each other then the angle between the mirrors is​

Answer 1

Answer:

90 degree

Explanation:

the rays are parallel so the angles made by the rays hitting the mirrors two times and they will be equal. so the angle made by them will be 90 degrees. draw the normals on the 90 degree angles.  so the angle of reflection will become 45. if u draw ray diagram u will notice that the ray makes a triangle containing the angle b/w the mirrors . so to get the other two angles u need to find like in the angle made by a ray reflected, find the angle by subtracting 90-45 , so u will get 45. similarly find the angle made by the other ray . U will get 45 itself. so using angle sum property u will find the angle b/w mirrors will be 90 degree