If n1 is the index of refraction for the incident medium and n2 is the index for the refracting medium, the critical angle will exist
A)
in all cases, it will just have different values.
B)
when n1 < n2.
C)
when n1 = n2.
D)
never.
E)
when n1 > n2.
E
Physics & Space Science
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