- #1
Foxhound101
- 52
- 0
Homework Statement
Two narrow slits are 0.12 mm apart. Light of wavelength 550 nm illuminates the slits, causing an interference pattern on a screen 1.0 m away. Light from each slit travels to the m=1 maximum on the right side of the central maximum.
Part A -
How much farther did the light from the left slit travel than the light from the right slit?
Express your answer using two significant figures.
Homework Equations
r=dsin(theta)
(theta)m = m*(lambda/d)
y=L*tan(theta)
ym = (m*lambda*L)/d
The Attempt at a Solution
I don't understand how to do these problems...
thetam = (m*lambda*)/d
thetam = (1*(5.5*10^-7m)/(1m)
thetam = 5.5*10^-7
path length difference = dsin(theta)
so...
r = d*sin(theta)
r = 1m *sin(5.5*10^-7)
r = 9.599^-9m
r = 9.6nm
That doesn't appear to be the correct answer(Unless MasteringPhysics is wrong). Sadly, I don't know if I did the right steps or used the correct equations.
Any help is appreciated.