Source – Detector Situations
1. One source and one detector both fixed : b = 10 log (I/Io) , I = Pav/4pr2
3. One source and two detectors all fixed : b2 – b1 = 20 log (r1/r2)
4. One source and two detectors with relative motion : Doppler effect or b
5. Two fixed sources and one fixed detector : interference DL = (l/2p) f
6. Two fixed sources and one moving detector : counting maxima and minima
How do you distinguish between the Doppler effect and b ?