Which of the Following Is True About Infrared Transmissions

question 38

Multiple Choice

Which of the following is true about infrared transmissions?

• A) directed IR transmission relies on reflected light
• B) diffused IR transmission requires emitter and detector to be aligned
• C) the intensity of the light pulse indicates the on or off status of each bit
• D) IR transmissions have speeds up to 25 Mbps.

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