Question.
You are given kerosene, turpentine and water. Using the table given in question 3, find in which of these does the light travel fastest.
You are given kerosene, turpentine and water. Using the table given in question 3, find in which of these does the light travel fastest.
solution:
The light travels fastest in water as its refractive index is least $(v \propto 1 / n)$ among the three given substances.
The light travels fastest in water as its refractive index is least $(v \propto 1 / n)$ among the three given substances.
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