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Asked Dec 27, 2019
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Light from a helium-neon laser (A = 632.8 nm) is incident on
a single slit. What is the maximum width of the slit for which
no diffraction minima are observed?
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Light from a helium-neon laser (A = 632.8 nm) is incident on a single slit. What is the maximum width of the slit for which no diffraction minima are observed?

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Expert Answer

Step 1

Given, the wave length = 632.8nm and the order of the dark fringe is one.

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Step 2

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