CBSE - XII Science - Physics - Wave Optics
what are coherent and incoherent ?
what is Doppler effect ?
Coherent sources produce light at same frequency at zero phase difference or at a constant phase difference.
Incoherent sources produce light at frequency which could be at varying phase differnces.
Doppler effect is the phenomena where the observor receives the frequency whihc is different from the source frequnecy due to relative motion between the source and observer.
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