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Doubt of Ray Optics..... Q18..... Answer is 90....plea pl solve this question....... thank you....

Doubt of Ray Optics..... Q18..... Answer is 90....plea pl solve this question....... thank you....

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1 Answers

Arun
25763 Points
3 years ago
Dear student
 
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I will be happy to help you.
 
Regards
Arun (askIITias forum expert)

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