The term ‘Blue Shift’ is used to indicate?

A. Doppler effect in which an object appears bluer when it is moving towards the observer or

observer is moving towards the object?

B. Turning a star from white to blue

C. In future sun would become blue

D. Black hole was blue at its start

E. None of these

1 Answer

Answer :

A. Doppler effect in which an object appears bluer when it is moving towards the observer or

observer is moving towards the object?

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