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A point object is placed at the centre o...

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

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Apoint object is at the centre of a glass sphere ofradius6cm.
The rays from the object fall normally on the surface of the sphere and emerge undeviated. When drawn backwards, they meet at O. The image will be formed at the centre O itself.
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