The term ‘Blue Shift’ is used to indicate?

A: Turning a star from white to blue

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

C: In future sun would become blue

D: Black hole was blue at its start

E: None of these

Check Correct Option

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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