Polarization by Reflection MCQ Quiz in मल्याळम - Objective Question with Answer for Polarization by Reflection - സൗജന്യ PDF ഡൗൺലോഡ് ചെയ്യുക

Concept:

Refractive Index (η_m):

The refractive index of a transparent material is defined as the ratio of the speed of light in the vacuum to that of a medium.

\(η_m= \frac{c}{v}\)

where, c = speed of light in vacuum, v = speed of light in the medium.

Calculation:

Given:

η_m = 4/3, c = 3 × 10⁸ m/s.

\(η_m= \frac{c}{v}\)

\(v= \frac{3× 10^8× 3}{4}\)

v = 2.25 × 108 m/s.