Two slits spaced $0\mathrm{.}210$ mmmm apart are placed $0\mathrm{.}760$ mm from a screen and illuminated by coherent light with a wavelength of $680$ nmnm $.$ The intensity at the center of the central maximum $($$=0)($$=0)$ is I$0$I$0.$

Part A

What is the distance on the screen from the center of the central maximum to the first minimum?

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yy $=$

nothing

mm

SubmitRequest$$Answer

Part B

What is the distance on the screen from the center of the central maximum to the point where the intensity has fallen to I$0/2?$I$0/2?$

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yy $=$

nothing

mm