The expression for refractive index is given by(a) N = v/c(b) N = c/v(c) N = cv(d) N = 1/cvI got this question in examination.This interesting question is from Refractive Index and Numerical Aperture topic in portion EM Wave Propagation of Electromagnetic Theory

The expression for refractive index is given by(a) N = v/c(b) N = c/v(

1.	The expression for refractive index is given by(a) N = v/c(b) N = c/v(c) N = cv(d) N = 1/cvI got this question in examination.This interesting question is from Refractive Index and Numerical Aperture topic in portion EM Wave Propagation of Electromagnetic Theory
Answer» The correct option is (b) N = c/v For explanation: The refractive index is DEFINED as the RATIO of the VELOCITY of light in a vacuum to its velocity in a specified medium. It is GIVEN by n = c/v. It is constant for a particular MATERIAL.

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The expression for refractive index is given by(a) N = v/c(b) N = c/v(c) N = cv(d) N = 1/cvI got this question in examination.This interesting question is from Refractive Index and Numerical Aperture topic in portion EM Wave Propagation of Electromagnetic Theory

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