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Can you please show ALL WORK in legible writing (NO CURSIVE PLEASE)! Thank you so much for helping me!4. What is the angle of incidence in air of a light ray whose angle of refraction in glass is half the angle of sin 20) 2SinOcoSCO

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adive Index o aclive incidene, e 9 0 an new ) according to gneston By Snells lous Sina, - Si 25ns) sine ) Cos e 0.75

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