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Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsPolarizationEasy2 minQB

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A ray of light travelling in water is incident on a glass plate immersed in it. When the angle of incidence is $51^{o}$ , the reflected ray is totally polarized. Find out the refractive index of glass.

[The refractive index of water is $1.3$ and $\tan 51^{o} = 1.235$ ]

Options:

Answer:

Solution:

$\frac{μ_{g}}{μ_{w}} = \frac{\sin i}{\sin r} = \tan i$ ; for total plane polarization.
{r=90-i}

$μ_{g} = μ_{w} \times \tan (51)$

$= 1.605$

Stream:JEESubject:PhysicsTopic:Wave OpticsSubtopic:Polarization

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