Solved UPSC CDS/OTA Question
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Q · Optics-Reflection of LightMedium · 45s
A boy sees his image 10 cm behind a plane mirror. The distance between the boy and the mirror is:
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.
The distance of image behind the mirror equals the object’s distance in front: so 10 cm.
Final Answer: Option (b