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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at plane surfaceMedium2 minPYQ_2022
PhysicsMediumsingle choice

The difference of speed of light in the two mediaAandBvA-vBis2.6×107 m s-1. If the refractive index of mediumBis1.47, then the ratio of refractive index of mediumBto mediumAis: (Given : speed of light in vacuumc=3×108 m s-1)

Options:

Answer:
C
Solution:

The speed of light in the medium B will be, vB=cμB

The speed of light in the medium A will be, vA=cμA.

Now, 

vA-vB=c1μA-1μB2.6×107=3×108×1μA-11.47μA=1.13

Stream:JEESubject:PhysicsTopic:Geometrical OpticsSubtopic:Refraction at plane surface
2mℹ️ Source: PYQ_2022

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