In Part 2 of this experiment you will use two different diffraction gratings. What is the distance, d, between the slits for each of the gratings listed below?
Be sure to record these values of d in your laboratory manual.
300 groves/mm: d= 3.33e-6 m
600 groves/mm: d= 1.67e-6m

Using the 300 groves/mm grating, a student measures L=1.01 m and the first dot is observed at y=0.345 m, what is ?
=

What is the wavelength observed?
= nm