Question

The speed of light in water is less when compared with air. Then what about its(water) refractive index when compared with air ???​

Answer 1

Answer:

Air's refractive index is about 1.0003, while water's is about 1.3. This means that light is “slower” in water than air. This is because it's more likely to hit a molecule and then get re-emitted, lengthening the amount of time the light takes to get through a certain distance of the medium.

Answer 2

Answer:

Tthe speed of light decreases when it goes from rarer medium to denser medium.

So, in this case water is denser medium and air is rarer medium.Thus , refractive index of water is is less than that of air.

Explanation:

• Refractive index- Speed of light in air ÷ Speed of light in medium