When two mirroes are inclined at an angle of 60^(@) with each other, find the glancing angles and angle of deviations at both the mirrors if the angle of incidence of a light ray is 45^(@) . Draw its ray diagram.

When two mirroes are inclined at an angle of 60^(@) with each other, f

1.	When two mirroes are inclined at an angle of 60^(@) with each other, find the glancing angles and angle of deviations at both the mirrors if the angle of incidence of a light ray is 45^(@) . Draw its ray diagram.
Answer» Solution :`i_(1)=r_(1)=45^(@)` `i_(2)=r_(2)=15^(@)` Glancing ANGLE at `M_(1)=90-i_(1)=90-45^(@)` `""=45^(@)` Glancing angle at `M_(2)=90-i_(2)=90-15` `""=75^(@)` Angle of DEVIATION at `M_(1)=180-2i_(1)=90^(@)` Angle of deviation at `M_(2)=180-2i_(2)=150^(@)`