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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsTIR/Prism and DispersionMedium2 minPYQ_2010

PhysicsMediumsingle choice

A ray of light is incident on a $6 0^{\circ}$ prism at the minimum deviation position. The angle of refraction at the first face (ie, incident face) of the prism is

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Answer:

Solution:

The refracting angle of prism $A = r_{1} + r_{2}$ For minimum deviation $r_{1} = r_{2} = r ∴ A = 2 r or r = \frac{A}{2} = \frac{6 0 ^{\circ}}{2} = 3 0^{\circ}$

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

⏱ 2mℹ️ Source: PYQ_2010

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