Infrared signals can be used for ______.

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Multiple Choice

Infrared signals can be used for ______.

Infrared signals are best for short-range, line-of-sight communication. IR light travels a limited distance in air and is easily blocked or distorted by ambient light, so it’s ideal for close, direct links between devices in the same room—think remote controls or small data links over a few meters. For long-range communication, radio frequency (RF) technologies are used because they can propagate through environments with more power and robustness. So infrared is associated with short-range use, not long-range, which is why that option fits best.

Infrared signals are best for short-range, line-of-sight communication. IR light travels a limited distance in air and is easily blocked or distorted by ambient light, so it’s ideal for close, direct links between devices in the same room—think remote controls or small data links over a few meters. For long-range communication, radio frequency (RF) technologies are used because they can propagate through environments with more power and robustness. So infrared is associated with short-range use, not long-range, which is why that option fits best.

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