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Monochromatic light from a distant source is incident on a slit 0.750mm wide. On a screen...

Monochromatic light from a distant source is incident on a slit 0.750mm wide. On a screen a screen 2m away, the distance from the central maximum of the diffraction pattern to the first minimum is measured to be 1.35 mm. Calculate the wavelength of the light. (Diagram: 2 right triangles, path difference, angle theta, y, L, a....)

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