Question

What is meant by temporal and spatial coherence?

Answer 1

Spatial coherence :-
describes the correlation (or predictable relationship) between waves at different points in space, either lateral or longitudinal.
Temporal coherence:-
describes the correlation between waves observed at different moments in time.

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Answer 2

Temporal coherence describe correlation between waves observed at different moments intime.
Spatial coherence describe correlation between waves at different points in space,either lateral or longitudinal.
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