Question

If an incident ray making an angle of 10° with the horizontal is to be reflected perpendicular to the horizontal, by an inclined plane mirror, then inclination of the plane mirror (0) should be 10" i (1) 0 = 30° (2) 0 = 40° (3) 0 = 50° (4) 0 = 60 09​

Answer 1

Answer:

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Answer 2

Answer:

40°

Explanation:

Angle between incident and reflected ray=80 °  

Angle of incidence =Angle of reflected ray=40°

Angle of reflected ray with mirror =90−40=50°

So angle with horizontal =90−50=40°