Physics - Geometrical Optics Question with Solution | TestHub
PhysicsGeometrical OpticsReflection at plane surfaceMedium2 minQB
PhysicsMediumsingle choice
A person is standing in a square room of width 200 cm. A plane square mirror of length 10 cm is fixed in the middle on a wall in front of the person. The person looks into the mirror from distance 50 cm. How much width of the wall behind him will he be able to see?
Options:
Answer:
C
Solution:
Image of the person is 50 cm behind the mirror.
Back wall is 200 cm from the mirror, so it is from the image.
Rays from the image through the mirror edges form similar triangles: . , so the answer is (C).
Stream:JEESubject:PhysicsTopic:Geometrical OpticsSubtopic:Reflection at plane surface
⏱ 2mℹ️ Source: QB
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