One end of a cylindrical glass rod `(mu = 1.5) `of radius 1.0 cm is rounded in the shape of a hemisphere. The rod is immersed in water` (mu= 4/3) `and an object is placed in the water along the axis of the rod at a distance of 8.0 cm from the rounded edge. Locate the image of the object.

Answer

A

Explanation

Here `u=8cm, v=-8cm`

`mu_1=4/3`
`mu_2=3/2`
`mu_2/v-mu_1/u=(mu_2-mu_1)/r`
`3/(2v)-4/(-3x8)=(3/2-4/3)/1`
`3/(2r)+1/6=1/6`
`=3/(2v)=0rarr =oo`