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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsReflection at plane surfaceMedium2 minQB
PhysicsMediummultiple choice

A boy of height 1.5 m with his eye level at 1.4 m stands before a plane mirror of length 0.75 m fixed on the wall. The height of the lower edge of the mirror above the floor is 0.8 m . Then :

Options:(select one or more)

Answer:
C, D
Solution:

 

So the boy will not see his feet.

 

The minimum mirror length needed is half the object's height. The top of the mirror should be at least at (eye level + height/2) and the bottom at (eye level - height/2). Therefore, the boy sees his full image.

 

Stream:JEESubject:PhysicsTopic:Geometrical OpticsSubtopic:Reflection at plane surface
2mℹ️ Source: QB

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