I believe there is an error on slides 20 and 21. The phrase "the wavelength of the light ray increases" is incorrect.
When a light ray travels from a medium of lower index to a medium of higher index, the wavelength of the light ray actually decreases.
This would have to be true to be consistent with the equation on slide 19.
I believe slide 21 has this same error.
Randall, you are correct, thanks for the correction. An updated presentation will be uploaded.
Hello Randall, this is Matthew it is good to see your still on board
New presentation is now posted.
Does slide 23 have a typo? "The effective speed......" sentence. Maybe the word "due" is missing?
I do not see this sentence on this slide? Could you please check again?