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FoIIowing is a Iist of some fectors whic...

FoIIowing is a Iist of some fectors which couId possibIy infIuece the speed of wave propagation.
(i) Nature of source (ii) direction of propagation (iii) motion of the source and / or observeer (iv) wavelength , (v) intensity of the wave.
One which of these factors if any does (a ) the speed of light in vacuum ,

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Speed of light in vacuum is an absolute (universal ) constant and does not depend on any factor.
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