Question:
Example 9 7 A magician during a show makes a glass lens with
Last updated: 6/9/2023
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Example 9 7 A magician during a show makes a glass lens with n 1 47 disappear in a trough of liquid What is the refractive index of the liquid Could the liquid be water Solution The refractive index of the liquid must be equal to 1 47 in order to make the lens disappear This means n n This gives 1 f 0 or f The lens in the liquid will act like a plane sheet of glass No the liquid