Question

show the steps of this question​

Answer 1

Explanation:

Hope it is helpful

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Answer 2

Answer:

absolute refractive index of n is

speed of light in vaccum÷ speed of light in another media

so

$\frac{3 \times {10}^{8} }{1.5 \times {10}^{8} }$

$\frac{3}{1.5}$

answer is 2