Science, asked by samikshassingh00, 5 months ago

Please tell me fast
this is the question of science chapter 16
please tell answer fastly

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Answered by chanchalprabha74

0

Answer:

it also the 90° may be...

Answered by sammy20o5

1

Answer:

45 degree

Explanation:

since Angel of incidence is equal to angel of reflection,

therefore 2a=90

hence a=45

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