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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsTIR/Prism and DispersionMedium2 minQB

PhysicsMediumsingle choice

The refracting angle of prism is $6 0^{\circ}$ and the index of refraction is $1/2$ relative to surrounding. The limiting angle of incidence of a ray that the will be transmitted through the prism is :

Options:

Answer:

Solution:

Surrounding is denser than the prism

At entry $sin i = \frac{1}{2} sin r_{1}$

Largest possible $r_{1} = 9 0^{\circ}$ , so $sin i = \frac{1}{2}$

$i = 3 0^{\circ}$

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

⏱ 2mℹ️ Source: QB

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