The term 'Blue Shift' is used to indicate?
Correct answer: A. Doppler effect in which an object appears bluer when it is moving towards the observer or observer is moving towards the object.
- 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
Explanation
A blue shift is the movement of spectral lines toward shorter, bluer wavelengths when the source and observer approach each other. It is the opposite of the red shift associated with recession.
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