question_answer

One end of a cylindrical rod is grounded to a hemispherical surface of radius \[\operatorname{R} = 20 mm\]. It is immersed in water \[\left( \mu  = 4/3 \right)\]. If the refractive index of the rod is 1.5 and an object is placed in water on the axis at a distance of 10 cm from the pole, then determine the position of the image from the pole on the axis (in cm).

Answer:

(31.25)