Physics, asked by imsadlyverydumb, 4 months ago

Can somebody please please answer to this? it would help a lot!

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Answered by hariniaedulla

1

Answer:

i) 90

II) 50

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Answered by Sayantana

2

Answer:

firstly remember one thing that angle of incidence is always measured from normal.

now lets solve,

Explanation:

hope it helps....

Good luck

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