Astronomers determine that a particular star in our galaxy is moving toward Earth at a speed of 723.0 km/s with respect to the Earth. If Earth receives a wavelength λ = 686.1 nm from this star, what was the wavelength emitted by the star?
Added by Salvador P.
Step 1
We know that the star is moving towards Earth at a speed of 723.0 km/s. This means that the light emitted by the star will be blueshifted, i.e., the wavelength will be shorter than the emitted wavelength. Show more…
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