Question

A point object is placed at the centre of a glass sphere of radius $6cm$ and refractive index $1.5$. The distance of the virtual image from the surface of the sphere is :

• A. $2cm$
• B. $4cm$
• C. $6cm$
• D. $12cm$

Answer 1

The correct option is C $6cm$

The rays from the object fall normally on the surface of the sphere and emerge undeviating. Hence the distance of the virtual image from the surface of the sphere is 6 cm