Question

(c) What is the speed of light in the medium of refractive index 1.2 if the speed of light is 3x10^8 m/s?

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Answer 1

Answer:

• Speed if light in air=C=3×10^8m/s
• Refractive index=1.2
• Speed of light in medium=V=?

We know that

$\boxed{\sf \mu=\dfrac{C}{V}}$

$\\ \sf\longmapsto 1.2=\dfrac{3\times 10^8}{V}$

$\\ \sf\longmapsto v=\dfrac{3\times 10^8}{1.2}$

$\\ \sf\longmapsto v=2.5\times 10^8m/s$

Answer 2

Answer:

the answer is very good

Explanation:

it is 2.5*10^8