Solved UPSC CDS/OTA Question
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Q · Optics-Reflection of LightMedium · 45s
Statement: The normal line is perpendicular to the mirror at the point of incidence. Is this correct?
TopicOptics-Reflection of Light
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
By definition, the normal is always perpendicular to the reflecting surface at the point of incidence.
Final Answer: Option A - Yes, always