The refractive index of diamond is $2.47$ and that of glass is $1.51$ . How much faster does light travel in glass then in a diamond.

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Solution

Refractive index $n = \frac{c}{v}$ where,
$c :$ velocity of light in vaccum
$v :$ velocity of light in medium
$v = \frac{c}{n}$
$\frac{v_{d}}{v_{g}} = \frac{n_{g}}{n_{d}} = \frac{1.5}{2.47}$
$v_{g} = 1.63 v_{d}$

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The refractive index of diamond is 2.47 and that of glass is 1.51. How much faster does light travel in glass then in a diamond.

Refractive index n=cv where,c:velocity of light in vaccumv:velocity of light in mediumv=cnvdvg=ngnd=1.52.47vg=1.63vd

The refractive index of diamond is $2.47$ and that of glass is $1.51$ . How much faster does light travel in glass then in a diamond.

Refractive index $n = \frac{c}{v}$ where,
$c :$ velocity of light in vaccum
$v :$ velocity of light in medium
$v = \frac{c}{n}$
$\frac{v_{d}}{v_{g}} = \frac{n_{g}}{n_{d}} = \frac{1.5}{2.47}$
$v_{g} = 1.63 v_{d}$