An Experiment to Measure the Speed of Light Uses an Apparatus

question 32

Multiple Choice

An experiment to measure the speed of light uses an apparatus similar to Fizeau's. The distance between the light source and the mirror is 10 m, and the wheel has 800 notches. If the wheel rotates at 9000 rev/s when the light from the source is extinguished, what is the experimental value for c (in m/s) ?

• A) 2.94 × 10⁸
• B) 2.92 × 10⁸
• C) 2.88 × 10⁸
• D) 2.98 × 10⁸
• E) 3.01 × 10⁸

---

Definitions:

Middle Managers

Managers who oversee the work of large departments or divisions.

Worker Involvement

The degree to which employees can contribute to decision-making processes and improvements within their workplace.

Performance Excellence

The achievement of outstanding performance in an organization, through the superior execution of activities, leading to improved results and recognition.

Social Responsibility

A concept where businesses are obligated to act in a way that benefits society at large, beyond their own interests.