The maximum refractive index of a prism which permits the passage of light through it is n . If the refracting angle of the prism is 90 ° , then what is the value of n ?

For passing the ray from the prism, μ < cosec A 2 μ < cosec 90 ° 2 μ < 2 μ max ⁡ = 2

Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsTIR/Prism and DispersionEasy2 minPYQ_2020

PhysicsEasynumerical

The maximum refractive index of a prism which permits the passage of light through it is $\sqrt{n}$ . If the refracting angle of the prism is $90 °,$ then what is the value of $n$ ?

Answer:

2.00

Solution:

For passing the ray from the prism,

$μ < cosec \frac{A}{2}$

$μ < cosec (\frac{90 °}{2})$

$μ < \sqrt{2}$

$μ_{\max} = \sqrt{2}$

Subject:PhysicsTopic:Geometrical OpticsSubtopic:TIR/Prism and Dispersion

⏱ 2mℹ️ Source: PYQ_2020

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