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Grade 12th passWave Optics

The refractive index of glass is 1.5. Find the speed of light in glass.

raghav

11 Years agoGrade 12th pass

1 Answer

Apoorva Arora

11 Years ago

We have,

$\mu = \frac{speed \, of \, light \, in\, vaccum}{speed \, of \, light \, in \, the\, material}$

Thus, speed of light in glass,

$= \frac{speed\, of\, light\, in\, vaccum\, }{\mu }$

$\frac{3.0\times 10^{8}ms^{-1}}{1.5} = 2.0\times 10^{8} ms^{-1}$

what is meant by refractive index?

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