Phase difference, path difference, and coherence

Can a single recording containing two sources, one of them moving, separate a beat rate from a Doppler shift? Useful evidence includes time-frequency tracks, an extracted beat rate, approach and recession frequencies, an inferred source speed, uncertainty, and a window-length and sampling limitation.

This GioPhysics course map is an adaptable learning sequence, not academic credit, accreditation, or a universal university syllabus. Third-semester content is the least standardised of the introductory sequence: departments place oscillations, waves, optics, and thermal physics differently, and the modern-physics units here are a bounded survey rather than a complete course in relativity, quantum mechanics, atomic, nuclear, or particle physics. Follow your institution's published scope, notation, laboratory programme, and assessment rules. A result should be checked against units, signs, limiting cases, and the conditions under which its model was derived.