Chapter 26, Problem 70RPP

To determine

The frequency closest to the frequency $f_D$ which is detected by the ball (from a tennis serve) moving towards the source waves from the radar, given that the source radar is emitting microwave frequencies of $10.52\text{ GHz}$ and the speed of served ball is $57\text{ m/s or 127 mi/h}$ from the options given below.

(a) $10.525\text{ GHz}$

(b) $10.525\text{ GHz + 2}\text{.0}\times {\text{10}}^{-6}\text{ GHz}$

(c) $10.525\text{ GHz }-\text{ 2}\text{.0}\times {\text{10}}^{-6}\text{ GHz}$

(d) $3\times {10}^{-7}\text{ Hz}$