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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2010
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A ray of light travelling in a transparent medium of refractive index µ, falls on a surface separating the medium from air at an angle of incidence of 45º. For which of the following value of µ the ray can undergo total internal reflection -


( A ) µ = 1.33
( B ) µ = 1.50
( C ) µ = 1.25
( D ) µ = 1.40

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