Problem 4 A laser with wavelength 656 nm is incident on a diffraction grating with 1600 lines/mm. (a) (15 points) Find t
Posted: Tue May 17, 2022 9:42 pm
Problem 4 A laser with wavelength 656 nm is incident on a diffraction grating with 1600 lines/mm. (a) (15 points) Find the smallest distance from the grating that a converging lens with focal length of 20 cm be placed so that the diffracted laser light converges to a point 1.0 meter from the grating. (b) (15 points) If a screen is placed at the location from part (a), how far apart will the two first order beams appear on the screen? (if you did not solve part (a), use a distance of 0.5 m).