A source produces first-order lines when incident normally on a 9800 slits/cm diffraction grating at angles...

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A source produces first-order lines when incident normally on a 9800 slits/cm diffraction grating at angles...

A source produces first-order lines when incident normally on a 9800 slits/cm diffraction grating at angles θ1 = 28.8∘, θ2 = 36.7∘, θ3 = 38.6∘, and θ4 = 41.2∘.

Part A

What are the wavelengths?

Express your answers using three significant figures separated by commas.

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A source produces first-order lines when incident normally on a 9000 slits/cm diffraction grating at angles...

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