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Homework Statement
When the incidence angle is equal to the angle of refraction?
Homework Equations
sina/sinb=n2/n1
The Attempt at a Solution
I think as a=b => sina=sinb => n1=n2. We should have the same environment? But is that refraction?
when b= pi/2 rad. It is the limit angle for a. sina=n2/n1At 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.when b= pi/2 rad. It is the limit angle for a. sina=n2/n1
a=b=0 rad? 0=0No, 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.