The discussion revolves around the conditions under which the angle of incidence equals the angle of refraction, particularly in the context of Snell's law and the behavior of light at the interface of different media.
The discussion includes various interpretations of the relationship between incidence and refraction angles, with some participants suggesting specific angles and others questioning the assumptions behind these angles. There is acknowledgment of Snell's law and its application to the scenario.
Participants reference the critical angle and the conditions for light to pass through without refraction, indicating a need for clarity on the definitions and implications of these angles in different media.
when b= pi/2 rad. It is the limit angle for a. sina=n2/n1blue_leaf77 said:At the interface of two different media, there is a certain angle of incidence where the incident ray just passes straight through. What is this angle?
No, that corresponds to critical angle refraction. It very simple, you have Snell's law ##n_1 \sin a = n_2 \sin b##. Try to find a trivial angle ##a=b## which will make the left and right hand side of Snell's law equal irrespective of the refractive indices.zade70 said:when b= pi/2 rad. It is the limit angle for a. sina=n2/n1
a=b=0 rad? 0=0blue_leaf77 said:No, that corresponds to critical angle refraction. It very simple, you have Snell's law ##n_1 \sin a = n_2 \sin b##. Try to find a trivial angle ##a=b## which will make the left and right hand side of Snell's law equal irrespective of the refractive indices.