Question

A remote control only works when it is pointed at the television. What is the best explanation for this?
A) The remote control has a weak signal and will only work over short distances.
B) The remote control transmits information at the speed of light to the television.
C) The remote control transmits information that is encoded and the television decodes it.
D) The remote control transmits information through waves, such as infrared waves, to the television.

Answer 1

The correct answer is D) The remote control transmits information through waves, such as infrared waves, to the television. Therefore a remote needs to be pointed at the tv in order to work.

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Answer 2

The answer is D. I know thi sbecause I answer this on USATestprep. Trust me.