First slide

Refraction of light

Question

The Cauchy’s dispersion formula is

Moderate

A

$n = A + {Bλ}^{- 2} + {Cλ}^{- 4}$
B

$n = A + {Bλ}^{2} + {Cλ}^{- 4}$
C

$n = A + {Bλ}^{- 2} + {Cλ}^{4}$
D

$n = A + {Bλ}^{2} + {Cλ}^{4}$

Solution

$n = A + {Bλ}^{- 2} + {Cλ}^{- 4}$

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