Solved UPSC CDS/OTA Question
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Q · Optics-Reflection of LightMedium · 45s
A ray of light is incident at an angle of 60° to the mirror surface. What is its angle of incidence?
TopicOptics-Reflection of Light
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Every step explained - no skipped algebra.
Angle of incidence is measured from the normal: 90°–60° = 30°.
Final Answer: Option (a