Question

Speed of light in glass is 2 into 10 ki power 8 metre per second and its refractive index is 1.5 what is the speed of light in medium whose refractive index is 4 upon 3

Answer 1

refractive index =speed of light in vacuum upon speed of light in medium.
so speed of light in medium =3/4*(3*10ke power 8)=2.25*10ke power 8 m/sec.

Answer 2

Answer:plz refer attachment

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Explanation: