Homework Statement
When 450nm light falls on a slit, the central diffraction peak (central maxima) on a screen 2.0m away is 6cm wide. Calculate the slit width?
wavelength= 450 x 10^9m
L= 2m
y= 0.06m
w=?
Homework Equations
y/L = tantheta = sintheta
sintheta = (m+1/2)lambda / w
The Attempt at a...