A parallel monochromatic beam of light is incident normally on a narrow slit. A diffraction pattern is formed on a screen placed perpendicular to the direction of incident beam. For the first minimum

Question

A parallel monochromatic beam of light is incident normally on a narrow slit. A diffraction pattern is formed on a screen placed perpendicular to the direction of incident beam. For the first minimum of the diffraction pattern the phase difference between the rays coming from the edges of the slit is

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Answer:

A

Solution:

As $dsinθ = n λ$ when $n = 1$

$dsinθ = λ$ the phase difference is $2 π$ and we get first minima.

TestHub · Accepted Answer

As dsinθ = n λ when n = 1 dsinθ = λ the phase difference is 2 π and we get first minima.

Physics - Wave Optics Question with Solution | TestHub

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