Waves, Oscillations & Acoustics
3 terms
Closed Organ Pipes
Waves, Oscillations & Acoustics
Hz
An acoustic pipe closed at one end and open at the other, having a displacement node at the closed end and an antinode at the open end.
f_n = n v / (4 L) (n = 1, 3, 5, ...)
Compound Pendulum
Waves, Oscillations & Acoustics
s
A rigid body suspended from a fixed horizontal axis that oscillates under gravity about a pivot point.
T = 2π √(I / (m g d))
Constructive & Destructive Interference
Waves, Oscillations & Acoustics
m
The phenomenon where overlapping coherent waves combine to reinforce (constructive) or cancel (destructive) each other's amplitude.
Path Diff ΔL = m λ (Constructive), ΔL = (m + ½) λ (Destructive)