Question

Is medium has a refractive index of 1.25 what is the speed of light?

Answer 1

$n = \frac{c}{v}$
So,
$v = (3 \times {10}^{8} ) \div 1.25$
$2.4 \times {10}^{8}$

Answer 2

Answer:  The speed of light is 2.4×10⁸m/s

Explanation: N=C/V    where,   c = 3×10⁸ m/s

                    V=3×10⁸÷1.25

       so,               =2.4×10⁸ m/s

Therefore, the speed of light =2.4×10⁸m/s.

To learn more about this refractive index click the link below:

https://brainly.in/question/51328

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