- #1
Alice-Shallom
- 4
- 0
Light of wavelength 600nm falls on a 0.40-mm-wide slit and forms a diffraction pattern on a screen 1.5m away.
(a) Find the position of the first dark band on each side of the central maximum.
(b) Find the width of the central maximum
For the (a) I think that we use sinθ = +- λ / α
I think m is equal to : m = +- 1
Where λ = 600 nm
and α = 0.40 mm
If the way I have solved (a) is correct, then how do I proceed to (b) ? I know L is 1.5m then what?
(a) Find the position of the first dark band on each side of the central maximum.
(b) Find the width of the central maximum
For the (a) I think that we use sinθ = +- λ / α
I think m is equal to : m = +- 1
Where λ = 600 nm
and α = 0.40 mm
If the way I have solved (a) is correct, then how do I proceed to (b) ? I know L is 1.5m then what?