Which of the following conditions are necessary and sufficient for total internal reflection to take place at the boundary between two optical media? I. Lig...

Question 1 Report

Which of the following conditions are necessary and sufficient for total internal reflection to take place at the boundary between two optical media?

I. Light is passing from optical denser medium to optically less dense medium

II. Light is passing from optically less dense medium to optically denser medium to optically denser medium

III. Angle of incidence is greater 

IV. Angle of incidence is lesser