Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsTIR/Prism and DispersionMedium2 minPDF

PhysicsMediumnumerical

A ray falls on a prism $ABC (AB = BC)$ and travels as shown in the figure. The minimum refractive index of the prism material should be

Answer:

1.41

Solution:

Use the shown prism geometry to find the incidence angle at the second face.

At minimum refractive index the ray is at the critical condition.

$μ_{min} = 2 \approx 1.41$

Stream:JEESubject:PhysicsTopic:Geometrical OpticsSubtopic:TIR/Prism and Dispersion

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