Task id17213
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Product description
In astrophysics, the quantity z==(L - L0)/L0 is often introduced, equal to the relative change in the length of the spectral line. Here L0 is the wavelength emitted by the source, L is the wavelength recorded by the observer. Express this quantity in terms of the radial velocity of the source in the reference frame associated with the observer.
Additional information
Answer. Format gif