An Experiment to Measure the Speed of Light Uses an Apparatus

question 20

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

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Definitions:

Digestive Enzymes

Proteins that accelerate the breakdown of food molecules into absorbable nutrients within the digestive system.

Absorbed

generally refers to the process by which substances are taken up into another substance, for example, nutrients being absorbed by the body's cells.

Chylomicrons

Protein-covered fat droplets produced in the intestinal cells; they enter the lymphatic system and are transported to the blood.

Regulatory Molecules

Substances such as hormones or neurotransmitters that control or regulate the activity of cells or organs in the body.