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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsTIR/Prism and DispersionEasy2 minPYQ_2020

PhysicsEasysingle choice

A ray of light when incident upon a prism suffers a minimum deviation of $39 °$ . If the shaded half portion of the prism is removed, then the same ray will -

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Answer:

Solution:

$δ = (μ - 1) A$

$\frac{δ_{2}}{δ_{1}} = \frac{A_{2}}{A_{1}}$

$\frac{δ_{2}}{δ_{1}} = \frac{\frac{A}{2}}{A}$

$\frac{δ_{2}}{δ_{1}} = \frac{1}{2}$

$δ_{2} = \frac{δ_{1}}{2}$

$δ_{2} = \frac{39}{2}$

$δ_{2} = 19.5 °$

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

⏱ 2mℹ️ Source: PYQ_2020

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