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Mathematics 26 Online
OpenStudy (anonymous):

Can someone explain to me why theta 4 is related to theta 1 in this picture?

OpenStudy (anonymous):

OpenStudy (akashdeepdeb):

Angle of incidence = angle of emergence! :) It is a glass slab! :)

OpenStudy (anonymous):

wow you're good :) thanks!

OpenStudy (akashdeepdeb):

Kudos? :)

OpenStudy (anonymous):

I knew it was something like that ty!

OpenStudy (akashdeepdeb):

;)

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