Lasers Are Used

question 125

Multiple Choice

Lasers are used

• A)to produce holograms.
• B)in surgery.
• C)to measure distances between objects accurately.
• D)in DVD and compact disc players.
• E)all of the above

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Definitions:

Minutes

A unit of time equal to one sixtieth of an hour, or 60 seconds.

Hours

A time unit equal to 60 minutes, used to measure duration.

Dimensional-Analysis

A technique in physics and engineering used to convert one set of measurements to another, ensuring that the mathematical equation relationships remain consistent.

Conversion Factor

A numerical value used to convert a quantity expressed in one unit to the equivalent quantity expressed in another unit.