How does an angle read? Are you sure you chose the right verb?
Angles of diffraction depend upon grating groove spacing. There is no simple "double" rule that I am aware of.
Perhaps if you state the equation that is troubling you, I can help explain.
why is the angle between the left and right angle reading, double that of the angle of diffraction.
Exact answer not needed but a little help appreciated
many thanks
SG
1 answer