How many orders of diffraction will be visible if light of wavelength 500nm fals on a grating with 600 000 lines per metre?
n = dsinѲ / λ
The Attempt at a Solution
n = 6X10⁵m ÷ 5 X 10ˉ⁷m = 1.2
So 1 order of diffraction will be visible is this right??
I don't have the angle so I could put it into the equation.