Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsTIR/Prism and DispersionEasy2 minPYQ_2020

PhysicsEasysingle choice

A thin prism of angle $5 °$ is placed at a distance of $10 cm$ from the object. The distance of the image from the object is (given $μ$ of prism $= 1.5$ )

Options:

Answer:

Solution:

$δ = (μ -1) A$

$δ = (1.5 -1) \times 5 ° = 2.5°$

$= 2.5 \times \frac{π}{180} = \frac{π}{72}$

$δ≈tan δ = \frac{d}{10}$

$\frac{π}{72} = \frac{d}{10} \Rightarrow d = \frac{5 π}{36} cm$

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

⏱ 2mℹ️ Source: PYQ_2020

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