A star emitting yellow light starts accelerating towards the earth. It's colour as seen from the earth will turn gradually to which colour?

Asked by akankshyasahu | 3rd May, 2012, 09:52: PM

Expert Answer:

As it is coming closer the earth , the frequency of the light must increase( so the wavelength must decrease. Dopplers effect), so the colour should go towards GREEN(VIBGYOR).

Answered by  | 4th May, 2012, 11:40: PM

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