- #1

- 5

- 0

My knowns are as follows:

L= 88 cm (distance from slit to screen)

λ= 419 nm

WCM= 0.58 cm (width of the central max, I assumed it was twice the distance from the center of the patter to the first order dark band)

w=? unknown width of the slit

I thought I should use the following equation:

WCM=[(2)(λ)(L)]/[(square root of : (w^2 - λ^2))]

I plugged the numbers into the equation and solved for w, but came up with the wrong answer, I'm not quite sure what I'm doing wrong....