cse • paper_1 • waves_oscillationscse-1997-subject-02-005
Coherence — UPSC CSE 1997 Physics PYQ
Buy PYQ Solution Manual →What is spatial coherence ? Considering Young's two slit experiment, prove that the distance between the slits must be sufficiently less than (\lambda/\theta) for obtaining fringes of good contrast. \lambda is the wavelength of light used and \theta is the angle subtended by the source at the slits.
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