1.

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/

Answer»

`6cm` from the CENTRE
`4cm` from the nearer surface
`3 1/5cm` from the nearer surface
`3 2/3 cm` from the centre

Solution :(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`



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