Laser light (λ = 600 nm) passes through two slits separated by d = 0.2 mm. The screen is 2 m away. Find fringe positions.
Formula Sheet
Constructive: Δ = mλDestructive: Δ = (m+½)λy_m = mλL/dFringe width = λL/dWhat is the fringe spacing (Δy) on the screen?
Where is the 2nd bright fringe (m = 2) from the central maximum?
If the slit separation d is doubled (to 0.4 mm), what happens to the fringe spacing?
What is the condition for DESTRUCTIVE interference in Young's experiment?