Refraction Of Light Video Lessons

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Problem: A ray of light passes from air into water with an angle of incidence of 30 degrees.1) Which of the following quantities does not change as the light enters the water? A. wavelengthB. frequencyC. speed of propagation 2) Briefly explain your reasoning.

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Refractive index:

η=cv

1)

The velocity of the wave changes when the medium changes.

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Problem Details

A ray of light passes from air into water with an angle of incidence of 30 degrees.

1) Which of the following quantities does not change as the light enters the water? 

A. wavelength
B. frequency
C. speed of propagation 

2) Briefly explain your reasoning.

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