question_answer

In a thin spherical fish bowl of radius 10 cm filled with water of refractive index \[4/3\] there is a small fish at a distance of 4 cm from the centre C as shown in figure. Where will the image of fish appears, if seen from E?

A) 5.2 cm             

B) 7.2 cm

C) 4.2 cm             

D) 3.2 cm

Correct Answer: A

Solution :

By using \[\frac{{{\mu }_{2}}}{v}-\frac{{{\mu }_{1}}}{u}=\frac{{{\mu }_{2}}-{{\mu }_{1}}}{R}\] where \[{{\mu }_{1}}\,=\,\,\frac{4}{3},\,\,{{\mu }_{2}}=1,\,\,u=-\,6\,cm,\,\,\nu =?\] On putting values \[\operatorname{v} = -5.2 cm\]