Question

help me out with this question ​

Answer 1

I think

y=90-40

y=50

because we know that normal always when fall on mirror make 90 degree angle

hope it will really help u

by

Ankita ❤️ ❤️

Answer 2

We knoe that Normal ray is alway perpendicular to tha plane.. therefore. according to figure

40 + y = 90

y = 90-40

y = 50

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