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Questions  

A point object is placed at the centre of a glass sphere of radius 6 cm and refractive index 1.5. The distance of the virtual image from the surface of the sphere is

a
2 cm
b
4 cm
c
6 cm
d
12 cm

detailed solution

Correct option is C

When the object is placed at the centre of the glass sphere, the rays from the object fall normally on the surface of the sphere and emerge undeviated. Then the image position is itself the object position.

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Similar Questions

A point object is placed at the centre of a glass sphere of diameter 12 cm and refractive index 1.5. What is the distance of the virtual image from the surface of the sphere?


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