Finding Highest Order Node & Antinode: Source Separation d & λ

[kthejohnster]

Homework Statement

if i have source separation between 2 light sources, d, and wavelength, λ, what is the highest order node and antinode?

Homework Equations

The Attempt at a Solution

im not sure where to start for this question I am leaning towards division to cancel out the meters

 

[ehild]

A light beam is diffracted by the slits, and the diffracted waves interfere. What are the conditions of destructive and constructive interference?

ehild

 

[technician]

what is the greatest path difference (in wavelengths) you can have between the 2 sources?