wave-optics Question 19
Question: Q. 10. Yellow light
central maxima, when the diffraction pattern is viewed on a screen kept
A [O.D. Comptt. I, II, III 2012]
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Solution:
Ans. Separation between two dark bands on each side of central bright fringe
We know width of the central fringe
where,
According to question,
Width of central fringe
So the distance between the two dark lines on either side of the central maxima
Angular spread of the first diffraction minima