Physics

Wave optics

Interference, diffraction grating, resolving power and parallax.

Physics

Interference maximum

Δ = kλ→
Physics

Interference minimum

Δ = (2k+1)λ/2→
Physics

Young fringe position

x = kλL/d→
Physics

Interference phase from path difference

Δφ = 2πΔ/λ→
Physics

Two-wave interference intensity

I = 4I₀cos²(Δφ/2)→
Physics

Maximum diffraction order

kmax = ⌊d/λ⌋→
Physics

Single-slit diffraction wavelength

λ = a sin α/k→
Physics

Central diffraction maximum width

w = 2λL/a→
Physics

Diffraction maximum screen position

x = L tan α→
Physics

Interference fringe spacing

Δx = λL / d→
Physics

Wavelength from diffraction grating

λ = d sin φ / k→
Physics

Diffraction grating resolving power

R = kN→
Physics

Optical parallax angle

p = a / D→