1). Astronomical redshift. A galaxy is observed to be receding from us at a speed of 7500 kilometers per second. It emit
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1). Astronomical redshift. A galaxy is observed to be receding from us at a speed of 7500 kilometers per second. It emit
1). Astronomical redshift. A galaxy is observed to be receding from us at a speed of 7500 kilometers per second. It emits orange light at its source of frequency 5 x 10¹4 Hz. What frequency do we observe here on earth?
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