In an experiment to measure the speed of light using the apparatus of Fizeau (see Fig. 35.2),

Question:

In an experiment to measure the speed of light using the apparatus of Fizeau (see Fig. 35.2), the distance between light source and mirror was 11.45 km and the wheel had 720 notches. The experimentally determined value of c was 2.998 x 108 m/s. Calculate the minimum angular speed of the wheel for this experiment.