Answer:
13000
Step-by-step explanation:
it's closer to 13000 than to 12000
4-2(1)=
4-2=2
So basically the answer is 2
From the attached graphic:
e = c*h/wavelength therefore,
wavelength = c*h / e
wavelength = 299,792,458 * 6.62606957e-34 / 3.38x10^-19
wavelength = 5.8771e-7 meters