cse • paper_1 • waves_oscillations
[UPSC CSE 1998] Polarisation and Modern Optics (Q445, 20M)
Distinguish between spatial and temporal coherence of light. What kind of coherence is required for interference and diffraction? Explain why it is possible to produce interference effects using two tuning forks of the same frequency but not by two independent sources of light of the same wavelength.
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