40 A Narrow cylindrical beam of light falls on a spherical

Last updated: 6/12/2023

40 A Narrow cylindrical beam of light falls on a spherical air bubble located in a liquid so that the axis of the beam passes through the center of the bubble Determine the refractive index of the liquid if it is known that the area of the beam at the exit from the bubble is 4 times the cross sectional area at the entrance C 2 A 1 5 B 4 3 D 1 75