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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsTIR/Prism and DispersionEasy2 minPDF

PhysicsEasynumerical range

A ray of light passing from air through an equilateral glass prism undergoes minimum deviation when the angle of incidence is $\frac{3}{4}$ th of the angle of prism. Find refractive index of material of prism.

Answer:

1.41

Solution:

$A = 6 0^{\circ}, i = \frac{3}{4} A = 4 5^{\circ}$

$r = A /2 = 3 0^{\circ}$

$μ = \frac{s i n i}{s i n r} = \frac{s i n 4 5 ^{\circ}}{s i n 3 0 ^{\circ}} = 2$

$μ \approx 1.414$

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

⏱ 2mℹ️ Source: PDF

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