Q10.14 Let us list some of the factors, which could possibly 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 factors, if any, does
(a) the speed of light in vacuum depend?
The speed of light in a vacuum is constant and independent of anything according to Einstein's theory of relativity.