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Physics - Wave Optics Question with Solution | TestHub

PhysicsWave OpticsYDSEEasy2 minQB

PhysicsEasysingle choice

The intensity ratio of two coherent sources of light is $P$ . They are interfering in the same region and produce an interference pattern. Then the fringe visibility is

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Solution:

Visibility, $V = \frac{I_{m a x} - I_{m i n}}{I_{m a x} + I_{m i n}} = \frac{2 \sqrt{I_{1} I_{2}}}{(I_{1} + I_{2})}$

$= \frac{2 \sqrt{\frac{I_{1}}{I_{2}}}}{\frac{I_{1}}{I_{2}} + 1} = \frac{2 \sqrt{P}}{P + 1}$

Stream:JEESubject:PhysicsTopic:Wave OpticsSubtopic:YDSE

⏱ 2mℹ️ Source: QB

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