A 5-MW Laser Pointer Has a Beam Diameter of 3

question 74

Multiple Choice

A 5-mW laser pointer has a beam diameter of 3 mm.What is the total electromagnetic energy in a 2.0 m length of this laser beam?

• A)2.3 * 10^-16 J
• B)4.7 * 10^-16 J
• C)1.7 * 10^-11 J
• D)3.3 * 10^-11 J
• E)5.0 * 10^-3 J

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Definitions:

Gluten Sensitivity

A condition characterized by adverse reactions to gluten, a protein found in wheat, barley, and rye, distinct from celiac disease and wheat allergy.

Dietary Need

Specific nutritional requirements or restrictions for maintaining health or managing medical conditions through diet.

Gluten

A mixture of proteins found in wheat and related grains, which can cause health issues in individuals with celiac disease or gluten sensitivity.

Purge

(1) When referring to charts, to clean out; purge files of those patients who are no longer being seen by the provider. (2) To empty; to cleanse of impurities; clear.