Anukruti Asked a Question
December 17, 2020 9:25 pmpts 30 pts
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  • Rahul kumar thankyou
    Answer: Critical angle = 26.39° Sin (critical angle) = V1 / V2 Sin (critical angle) = 2000 / 4500 Critical angle = arcsin (20/45) Critical angle = arcsin (4/9) = 26.39°
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  • Sajan sarthak Best Answer
    critical angle is 26.38 drgee
    • cropped2823974506639061718.jpg
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