Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at plane surfaceEasy2 minPYQ_2020

PhysicsEasysingle choice

When the angle of incidence on a material is $60^{o},$ the reflected light is completely polarised. The velocity of the refracted ray inside the material is (in ${m s}^{- 1}$ )

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Answer:

Solution:

Refractive index $μ = \tan i_{p} = \tan 60^{o} = \sqrt{3}$
So, the velocity of refracted ray inside the material
$v = \frac{c}{μ} = \frac{3 \times 10^{8}}{\sqrt{3}} = \sqrt{3} \times 10^{8} m s^{- 1}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Geometrical OpticsSubtopic:Refraction at plane surface

⏱ 2mℹ️ Source: PYQ_2020

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