Start Free Mock LoginAlready registered? Login here

Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsMiscellaneousEasy2 minPYQ_2011

PhysicsEasysingle choice

In Young's double slit experiment, the intensity of light at a point on the screen where the path difference is $λ = I$ . The intensity of light at a point where the path difference becomes $λ /3$ is

Options:

Answer:

Solution:

Intensity, $I \propto 4 a^{2} cos^{2} \frac{ϕ}{2}$ In the first case, $ϕ = 2 π$ $∴ I^{'} \propto 4 a^{2}$ In the second case, $ϕ = - \frac{2 π}{3}$ $∴ I^{'} \propto 4 a^{2} cos^{2} \frac{2 π}{3} or I^{'} \propto a^{2} \frac{I ^{'}}{I} = \frac{1}{4} or I^{'} = \frac{1}{4}$

Stream:VITEEESubject:PhysicsTopic:Wave OpticsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2011

Doubts & Discussion

Loading discussions...