Asked by QuestionHelper123
A television remote control is used to direct pulses of electromagnetic radiation to a receiver on a television. What does this communication between the remote control and the television illustrate about electromagnetic radiation?
a
It is a longitudinal wave.
b
It transfers energy without transferring mass.
c
It possesses energy inversely proportional to its frequency.
d
It diffracts and accelerates in air.
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Answer: b
Explanation: The remote's infrared pulses deliver energy to the TV receiver while no mass is transferred. (Photons carry energy and momentum but have no rest mass.) Options a and c are incorrect because EM waves are transverse and photon energy is directly proportional to frequency (E = hf), and d is incorrect because EM waves do not "accelerate" in air.
Explanation: The remote's infrared pulses deliver energy to the TV receiver while no mass is transferred. (Photons carry energy and momentum but have no rest mass.) Options a and c are incorrect because EM waves are transverse and photon energy is directly proportional to frequency (E = hf), and d is incorrect because EM waves do not "accelerate" in air.
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