In Doppler Effect red shift means 1 Increase in wavelength 2 Source moves away from the observ...........

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In Doppler Effect red shift means

1. Increase in wavelength

2. Source moves away from the observer

3. Decrease in wavelength

4. Source moving towards the observer

Which of the statements given above are correct?

1 Only

1 and 2 Only

2 Only

2 and 3 Only

Red shift is shift in the spectrum of a celestial object toward longer wavelengths, caused by the object's movement away from the viewer.

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