Depending upon the frequency of the ____ emitted by remote control, a channel is selected, by the sensor.

infrared radiations,microwave

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X-rays, X-ray

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infrared radiations,infrared

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radio waves,infrared

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Solution

The correct option is C infrared radiations,infrared
Remote control always use infrared light , as it will not penetrate through the walls of the room and also carry enough information for a required signal.

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