The Cauchy's dispersion formula is – | PHYSICS - DISPERSION BY A PRISM | SolveeIt | Solveeit

Today, August 19

Question

The Cauchy's dispersion formula is –

A

n = A + Bl^–2 + Cl^–4

B

n = A + Bl² + Cl^–4

C

n = A + Bl^–2 + Cl⁴

D

n = A + Bl² + Cl⁴

Answer

n = A + Bl^–2 + Cl^–4

Explanation

Solution

Couchy's equation

n = A + $\frac { B } { \lambda ^ { 2 } }$ + $\frac { C } { \lambda ^ { 4 } }$ = A + Bl^–2 + Cl^–4

option (1) is correct