The refractive indices of two media are denoted by n1 and n2 and the velocities of light in these tw...........

General Science (NDA) Physics

The refractive indices of two media are denoted by n₁and n₂, and the velocities of light in these two media are respectively v₁and v₂. If n₂/n₁ is 1.5, which one of the following statements is correct?

v₁ is 1.5 times v₂

v₂ is 1.5 times v₁

v₁ is equal to v₂

v₁ is 3 times v₂

Explanation:

Refractive index of medium 2 w. r. t. medium 1 is given by n₂= Speed of light in medium 1 / Speed of light in medium 2 = v₁ /v₂= 1.5 hence, v₁= 1.5 x v₂