than the critical angle. The e index of refraction of the
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B7
Transcribed Image Text:A ray of light from a coin embedded in an unknow solid undergoes total internal reflection if the angle of incidence
is larger than the critical angle. The light in the figure is incident at the critical angle. (a) What is the critical angle? (b)
What is the index of refraction of this solid?
air, n-1
12.0cm
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solid, n = 7
16.0 cm
Show us your calculation with values you used to earn partial credit in case your answer is incorrect. Note that you
will earn full credit only if you show us your calculation.
a) Critical angle
(Calculation)
b) Index of refraction
Question 15
c) 566 nm
d) 196 nm
coin
The wavelength of a monochromatic source in vacuum is 612 nm. What is the wavelength from the same light
when it passes through a liquid where the speed of light is 2.50 x 108 m/s? (c- 3.00 x 108 m/s)
al 590 nm
b) 510 nm
(Calculation)
el None of these is correct. Write your own
Explain your answer and show calculation with values to earn partial credit in case your answer is incorrect. You
must show your work to earn a full credit.
Write your answer the following way: Choice:; Explanation:........
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