Which of the Following Uses the Synchronized Positioning of Light-Emitting

question 17

Multiple Choice

Which of the following uses the synchronized positioning of light-emitting and sensing devices to detect user input?

• A) Biometric keyboard scanner
• B) Laser virtual keyboard
• C) Fingerprint scanner
• D) Touch display screen

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Definitions:

Average Speed

The total distance traveled divided by the total time taken to travel that distance.

Los Angeles

A major city in the state of California, USA, known for its entertainment industry, diverse population, and cultural landmarks.

Miles Per Hour

A unit of speed expressing the number of miles traveled in one hour, commonly used in the United States and the UK.

Miles Apart

A figurative expression indicating a significant difference in opinions, positions, or offers.