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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at plane surfaceEasy2 minPYQ_2016

PhysicsEasysingle choice

A ray of light travelling through rarer medium is incident at very small angle $i$ on a glass slab and after refraction its velocity is reduced by $20 % .$ The angle of deviation is

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Answer:

Solution:

As at interface, velocity of light reduces by $20 %$ of C
$∴ δ = 20 % i = \frac{20}{100} \times i = \frac{i}{5}$

Stream:MHT_CETSubject:PhysicsTopic:Geometrical OpticsSubtopic:Refraction at plane surface

⏱ 2mℹ️ Source: PYQ_2016

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