Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at plane surfaceEasy2 minPYQ_2020

PhysicsEasysingle choice

In a pond of water, a flame is held $2 m$ above the surface of the water. A fish is at depth of $4 m$ from the water surface. Refractive index of water is $\frac{4}{3}$ . The apparent height of the flame from the eyes of fish is -

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Answer:

Solution:

Apparent height of flame above water surface.

$h' = μ h = \frac{4}{3} \times 2 = \frac{8}{3} m$

Therefore, apparent height of the flame from the eye of fish

$= d + h' = 4 + \frac{8}{3} = \frac{20}{3} m$

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

⏱ 2mℹ️ Source: PYQ_2020

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