Single Choice

Figure shows three transparent media of refractive indices $$\mu_1, \mu_2$$ and $$\mu_3$$. A point object O is placed in the medium $$\mu_2$$. If the entire medium on the right of the spherical surface has refractive index $$\mu_1$$, the image forms at O'. If this entire medium has refractive index $$\mu_3$$, the image forms at O". In the situation shown,

Athe image forms between O' and O"
Bthe image forms to the left of O'
Cthe image forms to the right of O"
Dtwo images form, one at O' and the other at O".
Correct Answer

Solution

The rays incident on the surface above the principal axis will be refracted in the medium of R.I. µ₃ and form the image at O". But the rays falling below the axis will be refracted in the medium having R.I. µ₁ and the image will be formed at O'. Hence two images will be formed.
Hence option C is correct.

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