Double-Slit Interference
This simulation demonstrates the wave nature of light through double-slit interference. Adjust the parameters to see how they affect the interference pattern and calculate the wavelength.
When laser light passes through two closely spaced slits, it creates an interference pattern of bright and dark fringes on the screen. This demonstrates the wave nature of light.
Double-Slit Interference
When light passes through two slits, the waves from each slit interfere with each other. Bright fringes occur where the waves arrive in phase (constructive interference), and dark fringes where they arrive out of phase (destructive interference).
λ = (d × Δy) / L
Where:
λ = wavelength of light
d = slit separation
Δy = fringe separation
L = distance from slits to screen
