question_answer

A solid transparent sphere has a small opaque dot at its centre. When observed from outside, the apparent position of the dot will be

A)  Closer to the eye than its actual position.

B)  The same as its actual position.

C)  Farther away from the eye than its actual position.

D)  None of these.

Correct Answer: B

Solution :

As \[u=-R;\] \[\therefore \]    \[\frac{1}{V}-\frac{\mu }{-R}=\frac{1-\mu }{(-R)}\] \[\Rightarrow \]            \[v=-R\]