4.
For a plane surface radius of curvature approaches to infinity, therefore
n2
n,
n2
n,
n
n2
n
n
n, -n,
R
a)
b)
n, -n2
R
0
c)
d)
V
u
V
u
V
u
u
V
no
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Answer:
please post the pic of the question. it will be much easier to you even
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