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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at plane surfaceEasy2 minPYQ_2021

PhysicsEasysingle choice

A glass cube of length $24 cm$ has a small air bubble trapped inside. When viewed normally from one face it is $10 cm$ below the surface. When viewed normally from the opposite face, its apparent distance is $6 cm$ . The refractive index of glass is

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Solution:

Let $x$ be the real depth from first surface $10 = \frac{x}{μ}$ When viewed from opposite face $6 = \frac{24 - x}{μ}$ By solving, $μ = 1.5$

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

⏱ 2mℹ️ Source: PYQ_2021

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