Question: Laser light falls normally on three evenly spaced, very narrow slits. When one of the side slits is covered, the first-order maximum is at 0.60

Laser light falls normally on three evenly spaced, very narrow slits. When one of the side slits is covered, the first-order maximum is at 0.60° from the normal. If the center slit is covered and the other two are open, find

(a) The angle of the first-order maximum and

(b) The order number of the maximum that now occurs at the same angle as the fourth-order maximum did before.

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