The refractive index of a medium is expressed as

PHYSICS · Single correct · CBSE · Physics · Units and Measurements · Units and Measurements

Problem

n = 1 + \dfrac{A}{\lambda^{2}}

, where

\lambda

is the wavelength of light in metre. What is the dimensional formula of the constant

A

? (a)

[M^{0}L^{-2}T^{0}]

(b)

[M^{0}L^{2}T^{0}]

(c)

[M^{0}L^{0}T^{0}]

(d)

[M^{0}L^{1}T^{0}]