Question

the speed of light in air is 3*10 power8 m/s.the velocity of light in the medium of refractive index 1.5 will be.​

Answer 1

speed of light in medium=speed of light in vacuum\refractive index

=3×10^8/1.5

=2×10^8 m/s

Answer 2

${\mathfrak{\red{ANSWER}}}$

Good morning!

we know,

n=C/V

(n=refractive index, C=speed of light in air, V=speed of light in medium)

Substituting values:

1.5=3*10^8/V

V=3*10^8/1.5

V=2*10^8 m/s

$\boxed{V=2*10^8m/s}$

Hope it helps

Have a great day❤