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Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at plane surfaceEasy2 minPYQ_2016

PhysicsEasysingle choice

An air bubble in a glass slab with refractive index $1.5$ (near-normal incidence) is $5 cm$ deep when viewed from one surface and $3 cm$ deep when viewed from the opposite face. The thickness (in $cm$ ) of the slab is

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Solution:

Apparent depth $= \frac{R e a l d e p t h f r o m s u r f a c e}{R e f r a c t i v e i n d e x}$

$d = (d_{1} + d_{2}) μ$

$= 1.5 (5 + 3) = 12 cm$

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

⏱ 2mℹ️ Source: PYQ_2016

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