In Fizeau's Experiment for Measuring the Speed of Light, the Wheel

question 14

Multiple Choice

In Fizeau's experiment for measuring the speed of light, the wheel has 475 notches. What rotational speed is required for the return beam of light to pass through the next notch? The time between successive notches is 6.65 × 10^-5 s.

• A) 20.4 rev/sec
• B) 16.6 rev/sec
• C) 31.7 rev/sec
• D) 66.4 rev/sec
• E) 90.9 rev/sec

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Definitions:

GPA

Grade Point Average, a cumulative average of a student's grades, typically on a 4.0 scale.

Independent Variable

A variable that is manipulated to determine if it causes any change to a dependent variable in an experiment.

Dependent Variable

The variable in an experiment or model that is expected to change in response to changes in the independent variable(s).

Scatterplot

A type of plot or mathematical diagram using Cartesian coordinates to display values for typically two variables for a set of data, showing the relationship between them.