Part a
Calculate the fractional frequency shift \(\frac{\Delta f}{f_0}\), where \(\Delta f = f_0 – f\).
Part b
Using the approximation \(\frac{\Delta f}{f_0}\approx\frac{v}{c}\), determine the speed \(v\) of the object relative to Earth. State whether the light is redshifted or blueshifted. (Use \(c=3.00\times10^8\,\text{m/s}\)).