When a light rays enters a medium with refractive index n2 from a medium with refractive index n1 at curved interface with radius of curvature r is given by n2 by v -n1 by u =n2-n1 by r . Now assume that the surface is plane and rewrite the formula with suitable changes .
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Hii friend,
The question is from ray optics.
# Solution-
For plane surface,
Radius of curvature will be infinity.
Putting this in formula for refraction at single curved surface,
n2/v - n1/u = (n2-n1)/R
n2/v - n1/u = (n2-n1)/∞
n2/v - n1/u = 0
n2/v = n1/u
v/u = n2/n1
n2/n1=v/u
Hence solved n2/n1=v/u for plain surface.
Hope that was useful.
Thanks for asking...
The question is from ray optics.
# Solution-
For plane surface,
Radius of curvature will be infinity.
Putting this in formula for refraction at single curved surface,
n2/v - n1/u = (n2-n1)/R
n2/v - n1/u = (n2-n1)/∞
n2/v - n1/u = 0
n2/v = n1/u
v/u = n2/n1
n2/n1=v/u
Hence solved n2/n1=v/u for plain surface.
Hope that was useful.
Thanks for asking...
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