he width of opaqu d and 4th order n

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In a diffraction grating the width of opaque space is 2.5µm and clear space is 1.5um. Calculate
the intensity ratio of 2nd and 4th order principle maxima for 1=500 nm.
Transcribed Image Text:In a diffraction grating the width of opaque space is 2.5µm and clear space is 1.5um. Calculate the intensity ratio of 2nd and 4th order principle maxima for 1=500 nm.
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