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White Light Diffraction

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White light strikes a diffraction grating (540 lines/mm) at normal incidence. What is the longest wavelength that forms a third-order maximum?

© BrainMass Inc. brainmass.com September 23, 2018, 10:24 pm ad1c9bdddf - https://brainmass.com/physics/light-diffraction/white-light-diffraction-40887

Solution Preview

We have grating law:
(a + b) Sin (theta) = n * lambda
where a + b = grating element
theta = angle of diffraction with maximum value ...

Solution Summary

This solution uses grating law and shows complete calculations and answer.

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