Question

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

Answer 1

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.