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When a police officer uses radar for speed control, the officer is using what kind of electromagnetic waves? A) radio waves B) gamma rays C) ultraviolet rays D) X-rays

Respuesta :

quasarJose

Answer:

A) radio waves

Explanation:

A police officer using radar for speed control is using radio waves.

Radio waves is one of the forms of electromagnetic radiations that are known.

  • Radar is a detection system for spotting objects within its coverage.
  • It is a non-ionizing radiation and safe radiation source.
  • Radar generally belongs to the low energy part of the electromagnetic spectrum.
  • They have large wavelength with very low frequency.

It is the radiowaves, which are used by the radar system.  

• Transmission of radiowaves is done by the radar systems.  

• The majority of the objects reflect radio waves that can be determined by the radar system.  

• The frequency of the radio waves relies upon the application of the radar system.  

• The radar systems are usually determined by the frequency or wavelength band in which they operate.  

• The police radar systems transmit radio waves on a particular frequency, and in North America, the three frequency bands presently in use are K band, S band, and Ka band.  

Thus, the correct answer is option A, that is, radio waves.

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