Question

The refractive index ju of a transparent medium varieswith wavelength of light as refractive index= A +( B/wavelength square)Where A and B are constants. Find the dimensionalformula and SI unit of and B.​

Answer 1

Answer:

In image there is your answer my friend.

Answer 2

Answer:

As μ=Velocity of light in vaccum,

Velocity of light in medium,

hence μ is dimensionless.

Thus ,

Each term on the RHS of given equation should be dimensionless ,

that is, B/λ2 is dimensionless,

i.e., B should have dimension of λ2, (i.e., cm^2),

i.e.,  SI unit of area

Hope you found that helpful !