A teaching tape for SR-11, moving mirror reflection
moving mirror reflection
Teaching tape demonstrating frequency shift, aberration, radiation pressure, and energy balance for reflection from a moving mirror.
Open SR-11 with these settings
Where it starts
| Setting | Value |
|---|---|
| Mirror speed ratio (v/c) (beta) | 0.6 |
| Incident angle (incidentAngleDeg) | 0 |
| Incident energy density (incidentEnergyDensity) | 1 |
| Mirror surface area (mirrorArea) | 1 |
What it changes, and what to expect
Set Mirror speed ratio (v/c) (beta) to 0.6 changes what the run starts from
receding-mirror-0.6c
Light hitting a receding mirror at 0.6c returns with frequency ratio 0.25, while mechanical work P*v*Am = 0.3*I*Am accounts exactly for the energy lost by the radiation.
These are the values the tape's author recorded, not a result this page computed. Nothing here runs the instrument. Open SR-11 with these settings: the link opens it with them already in place. Compare what it gives you with what is recorded here. The settings travel in the link and the laboratory reads them as it loads, so without JavaScript it opens at its worked example instead.