The speed of light in a transparent medium is 0.6 times that of its speed in vacuum. find the refractive index of the medium.

The refractive index is 1.66

The speed of light in a transparent medium is 0.6 times that of its speed in vacuum .

Refractive index of medium = speed of light in vacuum / speed of light in medium  

So

RI = 1/0.6 = 5/3 or 1.66

Refractive index is defined as

given that

v = 0.6 c

so we will have

terd muffin is the correct answer

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg