Question

# The critical angle for total internal reflection for diamond (n=2.42) surrounded by water (n=1.33) is approximately...

The critical angle for total internal reflection for diamond (n=2.42) surrounded by water (n=1.33) is approximately what? Answer: 33 degrees.

The possible choices were:

(a) 24 degrees.

(b) 33 degrees.

(c) 49 degrees.

(d) 63 degrees.

(e) 90 degrees.

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