Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsTIR/Prism and DispersionEasy2 minPYQ_2020

PhysicsEasysingle choice

If the angle of minimum deviation is of $60 °$ for an equilateral prism, then the refractive index of the material of the prism is

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Answer:

Solution:

$μ = \frac{\sin (\frac{A + δ_{m}}{2})}{\sin \frac{A}{2}}$

For equilateral prism, $∠ A = 60 °$

$μ = \frac{\sin (\frac{60 ° + 60 °}{2})}{\sin \frac{60 °}{2}} = \frac{\sin 60 °}{\sin 30 °} = \frac{\frac{\sqrt{3}}{2}}{\frac{1}{2}} = \sqrt{3} = 1.73$

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

⏱ 2mℹ️ Source: PYQ_2020

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