Costume Jewelry

Score: 3 Points

In costume jewelry, rhinestones (made of glass with $n=1.5$) are often coated with silicon monoxide ($n = 2.0$) to make them more reflective. how thick should the coating be to achieve strong reflection for $560nm$ light, incident normally?

Note: Your answer should be in the $nm$ unit. Don't write the unit in the answer.



Tried 19

Solved 13

First Solve @minhazurrahmanzim

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