Question

refractive index of a and b are 2 and 2.5 which is denser ​

Answer 1

Answer:

b is denser

Hope it helps you

Answer 2

Answer:

B is the answer.

Explanation:

Which one has a higher refractive index, denser or rarer? Why?

Density has not any influence on the RI of a transparent material; optical density has.

Water has a RI of 1.333 and density of 1 gr/cm^3, olive oil has a RI of 1.47 and density of 0.9 gr/cm^3; diamond has a RI of 2.42 and density of 3.5 gr/cm^3, etc. (RI for yellow color).

Diamond is denser than water denser that olive oil.

Diamond is optically denser that olive oil than water.

And vacuum has a RI of 1 and "density", well, 0.

Now, if you mean for the same material, then as the density increase, that is, the molecules get closer (let’s say by cooling), the speed of light into the material decrease, thus the RI decrease. Then denser has higher RI than rarer.