Question

speed of electromagnetic wave is same (a) all media (b) all intestines (c) all frequency (d) all wave length. justify ans​

Answer 1

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Speed of light is irrespective of the frequency.

1. As wavelength changes to change speed
2. Medium also changes the speed it only depends on optical density
3. Intensity changes the energy dec at last it become zero so speed too becomes zero
4. Frequency depend on source so it don't change and don't effect the speed.

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