There is a small black dot at the centre C of a solid glass sphere of refractive index - When seen from outside- comment on the location of the dot-

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Question

There is a small black dot at the centre $C$ of a solid glass sphere of refractive index $μ$ . When seen from outside, comment on the location of the dot.

away from

C

for all values of

μ

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C

for all values of

μ

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C

for

μ = 1.5

, but away from

C

for

μ \neq 1.5

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C

only for

\sqrt{2} \leq μ \leq 1.5

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Solution

The correct option is D away from $C$ for all values of $μ$
The object is kept at the centre of the sphere all the rays coming from it are normal to the surface of the sphere. Therefore they will emerge out undecided. The image will appear at the same place away from C for all values of $μ$ .

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There is a small black dot at the centre C of a solid glass sphere of refractive index μ. When seen from outside, comment on the location of the dot.

The correct option is D away from C for all values of μThe object is kept at the centre of the sphere all the rays coming from it are normal to the surface of the sphere. Therefore they will emerge out undecided. The image will appear at the same place away from C for all values of μ.

There is a small black dot at the centre $C$ of a solid glass sphere of refractive index $μ$ . When seen from outside, comment on the location of the dot.

The correct option is D away from $C$ for all values of $μ$
The object is kept at the centre of the sphere all the rays coming from it are normal to the surface of the sphere. Therefore they will emerge out undecided. The image will appear at the same place away from C for all values of $μ$ .