Pls help me with part a . with diagram
plssssss
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Answer:
your answer is in the above attachment.
go through it.
Explanation:
whenever a ray of light is perpendicular to a prism it passes undeviated ( that what happened at AC)
but at surface AB it was at angel 45° so after total internal reflection it striked at BC making an angle of 45° and moved to AC.
Here, on being perpendicular it passed undeviated.
Hope it helps
thank you.
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