Question

Figure (18-Q3) shows three transparent media of refractive indices ${\mu }_1,{\mu }_2\mathrm{and}{\mu }_3$. 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,
(a) the image forms between O' and O"
(b) the image forms to the left of O'
(c) the image forms to the right of O"
(d) two images form, one at O' and the other at O".
Figure

Answer 1

(d) two images form, one at O' and the other at O"

Light will be refracted differently in both mediums on the right side. Thus, two images will be formed, one at O' due to refraction from medium μ₁ and another at O" due to refraction from medium μ₃.μ1