The efficiency of classroom lasers is typically
A)about one percent.
B)about ten percent.
C)about twenty percent.
D)appreciably more than twenty percent.

Name: The efficiency of classroom lasers is typically A)about one percent. B)about ten percent. C)about twenty percent. D)appreciably more than twenty percent.
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Question

Quizplus · Accepted Answer

Classroom lasers, such as those used in laser pointers, typically have an efficiency of about one percent, as they are designed for low power and cost rather than high efficiency.

The Efficiency of Classroom Lasers Is Typically