Question

A small object is enclosed in a sphere of solid glass `8cm` in radius. It is situated `2cm` from the centre and is viewed from the side of which it is nearer. Where will it appear to be if `mu` of glass `=1.5`/
A. `6cm` from the centre
B. `4cm` from the nearer surface
C. `3 1/5cm` from the nearer surface
D. `3 2/3 cm` from the centre

Answer 1

(c) Here `mu_(1)=1.5, mu_(2)=1, u=+6cm`,
`r=+8cm`
`(mu(2))/v-(mu_(1))/u=(mu_(2)-mu_(1))/r`
`1/v-1.5/6=(1.5-1)/8`
`:. V=3 1/5 cm`