PHYSICAClass 11 Physics simulations · Waves
Pulse reflection at a boundary
Send a pulse between two strings and compare its reflected amplitude and sign.
What to notice
A larger outgoing impedance makes the reflected displacement invert.
Key relation
r = (Z₁ − Z₂)/(Z₁ + Z₂)
Try this
Match the two impedances to eliminate reflection.
What you can change
- Incoming impedance: 1 to 10 kg/s
- Outgoing impedance: 1 to 10 kg/s
- Incident amplitude: 0.2 to 1 units
More in Waves
- Beats: two notes, one pulsing sound
- Doppler effect
- Open and closed organ pipes
- Resonance tube: speed of sound
- Ripple tank: two-source interference
- Sonometer: frequency and length
- Standing waves on a string
- Wave speed on a stretched rope
- Superposition of two waves
- Travelling wave
See all Class 11 Physics simulations or every Physica simulation.