Home
PYQ PracticeFree
JEE Rank Predictor
Answer Key

Physics - Geometrical Optics Question with Solution | TestHub

PhysicsGeometrical OpticsTIR/Prism and DispersionEasy2 minPYQ_2014

PhysicsEasysingle choice

A green light is incident from the water to the air - water interface at the critical angle $(θ_{c})$ . Select thecorrectstatement.

Question diagram: A green light is incident from the water to the air - water

Options:

Answer:

Solution:

$sin θ_{c} = \frac{1}{μ}$

For greater wavelength (i.e lesser frequency) μ is less So, $θ_{c}$ would be more. So, they will not suffer reflection and come out at angles less than $90^{\circ}$ .

Stream:JEESubject:PhysicsTopic:Geometrical OpticsSubtopic:TIR/Prism and Dispersion

⏱ 2mℹ️ Source: PYQ_2014

Doubts & Discussion

Loading discussions...