Question

Part A For a given wavelength λ, what is the minimum slit width for which there...

Part A

For a given wavelength λ, what is the minimum slit width for which there will be no diffraction minima? Express your answer in terms of λ.

D= _______ 

Part B

What is the minimum slit width so that no visible light exhibits a diffraction minimum?

D= _______ 

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