A light beam is incident on a dense...

A light beam is incident on a denser medium whose refractive index is 1.414 at an angle of incidence `45 ^(@)` find the ratio of width of refracted beam in a medium to the width of the incident beam in air

`sqrt(3 ) : sqrt(2) `

` 1 : sqrt(2)`

`sqrt(2) : 1`

` sqrt(2) : sqrt(3)`

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