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Refractive index for a piece of transparent material is greatest for

(a) red light

(b) violet light

(c) green light

(d) yellow light

1 Answer

For the visible range wavelength for red light is greater and violet light is least
we have $ \mu \alpha \large\frac{1}{\lambda}$
$\lambda _r > \lambda_v$
$\therefore \mu_v > \mu _r$
Hence b is the correct answer.

 

answered Jan 16, 2014 by meena.p
edited Jul 14, 2014 by thagee.vedartham
 

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