An opaque sphere of radius a is just immersed in a transparent liquid as shown in figure. A
point source is placed on the vertical diameter of the sphere at a distance a/2
from the top of the
sphere. One ray originating from the point source after refraction from the air liquid interface forms tangent to the sphere. The angle of refraction for that particular ray is 30 degrees.The refractive index will be?

Question

An opaque sphere of radius a is just immersed in a transparent liquid as shown in figure. A 
point source is placed on the vertical diameter of the sphere at a distance a/2
 from the top of the 
sphere. One ray originating from the point source after refraction from the air liquid interface forms tangent to the sphere. The angle of refraction for that particular ray is 30 degrees.The refractive index will be?

irishboy123 · Answer

you should draw this or include the original figure