- #1
titan81
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Homework Statement
Light of wavelength 490 nm is incident on a narrow slit. The diffraction pattern is viewed on a screen 3.6 m from the slit. The distance on the screen between the central maximum and the third minimum is 2 cm. What is the width of the slit?
Homework Equations
The Attempt at a Solution
Not sure where I need to start. Can someone help me out