Question

Find the refractive index of a medium if the speed of light in that medium is 2.25 * 10'8m/s​

Answer 1

Answer:

Step-by-step explanation:

n²¹= velocity of light in vacuum / velocity of light in medium

n²¹= 3×10^-8 /2.25×10^-8

n²¹=3 /2.25

n²¹=300/225

n²¹=12/9

n²¹=4/3 =1.3333......

Hence the refractive index of medium is 1.333

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Answer 2

Step-by-step explanation:

n = c/v = speed of light in vaccum/speed of light in medium

n = 3×10^8 / 2.25× 10^8

= 1.33333333333......