1.

Let us list some of the factors, which could possible influence the speed of wave propagation: (i) Nature of the source. (ii) Direction of propagation. (iii) Motion of the source and/or observer. (iv) wavelength. (v) Intensity of the wave. On which of these factos, if any, does.

Answer»

Solution :The SPEED of LIGHT in vacuum is a universal constant. It is INDEPENDENT of all the factors MENTIONED here. This is a basic axiom of Einstein.s special theory of relativity.
The speed of light in a medium DEPENDS only on the wavelength of light and is independent of all other factors.


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