Question 12: A beam of light travelling in air is incident normally on an air-dielectric interface. The refractive index of the dielectric is25 Which one of the following best approximates the percentage of the incident optical power that is transmitted across the interface? O 18% O 57% O 43% O 82%
Question 12: A beam of light travelling in air is incident normally on an air-dielectric interface. The refractive index of the dielectric is25 Which one of the following best approximates the percentage of the incident optical power that is transmitted across the interface? O 18% O 57% O 43% O 82%
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Transcribed Image Text:Question 12:
A beam of light travelling in air is incident normally on an air-dielectric interface. The refractive index of the dielectric is 2.5 Which one
of the following best approximates the percentage of the incident optical power that is transmitted across the interface?
18%
O 57%
43%
O 82%
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