Resultant amplitude
Add two sinusoidal waves with phase difference Δφ.
A = √(a₁²+a₂²+2a₁a₂cosΔφ)6.083 units
TOPIC 8 LAB
Superposition toolkit
Explore the equations behind interference and optical patterns.
String harmonics
Find the nth harmonic of a string fixed at both ends.
fₙ = nv/2L120.0 Hz
Double-slit fringes
Calculate w using wavelength in nm and separation in mm.
w = λD/a2.400 mm
Grating angle
Find a principal-maximum angle for a grating.
d sinθ = nλ36.87 °