How Far Apart Are Light Fringes in a Double Slit Experiment?

[hardwork]

Homework Statement

In a double slit experiment, the wavelength is 740nm, the slit separation is 0.140mm, and the screen is 48.0cm away from the slits. What is the linear distance between adjacent maxima on the screen? Please check my answer.

Homework Equations

dy/L = m*wavelength

The Attempt at a Solution

y = [1(740x10^-9 m)(0.48m)]/(0.140x10^-3m)
y = 2.5 x 10^3 m

Thanks!

 

[Chewy0087]

perfect

 

[Redbelly98]

y = 2.5 x 10^3 m

2.5 kilometers is much too large an answer here.