The diffraction pattern also only shows red light ... but this is good enough for a start. Solving the grating equation for the groove spacing gives d = λ / sin(θ). Recalling that sin(θ) ≈ x / L for ...

Lines of data pits on a CD give the same effect. See diffraction. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires permission.

Q: What are diffraction gratings? A diffraction grating is an optical component for spectroscopy that splits light into different wavelengths. A typical diffraction grating has thousands of ...

The pattern may be bigger, and red light is likely less sensitive to imperfections in the grating. Some of the special edition banknotes in circulation don't have the maple leaf diffraction grating.