Question

Light of wavelength 550 nm falls on a slit that is 3.50 x 10^-3 mm wide. How far from the central
maximum will the first diffraction maximum fringe be if the screen is 10.0 m away?

Answer 1

Light of wavelength 550 nm falls on a slit that is 3.50 x 10^-3 mm wide. How far from the central maximum will the first diffraction maximum fringe be if the screen is 10.0 m away?
This is what i have so far:
λ = 550 * 10^{-9}\] m.
D = 3.50*10^-6 m.
d = 10 m.
m = 1
2x = ?

Is that right?

Answer 2

you'll need find x when n=1