Start Free Mock LoginAlready registered? Login here

Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsRefraction at plane surfaceEasy2 minPYQ_2020

PhysicsEasysingle choice

A fish looking up through the water sees the outside world contained in circular horizon. If the refractive index of water is $\frac{4}{3}$ and the fish is $12 c m$ below the surface, the radius of this circle (in $cm$ ) is

Options:

Answer:

Solution:

Radius of the circular horizon is

$r = \frac{h}{\sqrt{µ^{2} - 1}}$

$r = \frac{12}{\sqrt{{(\frac{4}{3})}^{2} - 1}}$

$r = \frac{36}{\sqrt{7}} cm$

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

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...