Question

This lab uses the Fraunhofer diffraction formula to correlate the angle of diffraction with the
wavelength it represents.
n  d sin 
In this equation, n is the grating order (here n = 1), the desired wavelength is ʎ and the grating
spacing is d. For a 1000 line/mm grating (d = 1.0 x 10-6 m), orange light (ʎ = 589 nm) was diffracted
at θ = 36o. Using the same grating, determine the diffraction angles of 482 nm, 500 nm and of 610
nm.

Answer 1