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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsTIR/Prism and DispersionEasy2 minPYQ_2020

PhysicsEasysingle choice

A ray of light is incident normally on one face of a right-angled isosceles prism and then it grazes the hypotenuse. The refractive index of the material of the prism is

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Answer:

Solution:

Refractive index, $μ = \frac{1}{\sin C},$

Where $C$ is the critical angle

Here, $C = 45 °$

$∴ μ = \frac{1}{\sin 45 °}$

$o r μ = \sqrt{2}$

$o r μ = 1.414$

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

⏱ 2mℹ️ Source: PYQ_2020

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