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The the Frequency and Wavelength of Light in an Optical ∘\circ

Question 53

Multiple Choice

The the frequency and wavelength of light in an optical fiber are 4.57 *1014 Hz and 437 nm,respectively.What is the critical angle for light in this optical fiber,if the fiber is surrounded by water (n=1.33) ?


A) 57.9 ∘\circ
B) 62.3 ∘\circ
C) 48.8 ∘\circ
D) 41.7 ∘\circ
E) 65.4 ∘\circ

Correct Answer:

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