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Refractive Index

30 cm high bu...

Question

30 cm high bucket is completely filled with liquid. A coin at its bottom appear to be raised by 12 cm. Then what is the refractive index of liquid!?

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Solution

depth or h = 30 cm
raise in height or h'=30-12= 18 cm
refractive index or I=h/h'
⇒30/18
⇒ 1.67
∴5/3

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