Question

Which characteristic is common to microwave radar, waves ,and television waves? A they are different types of waves with frequencies higher than radio waves B they are all radio waves with frequencies lower than visible light C they are all radio waves with wavelength shorter than visible light

Answer 1

B they are all radio waves with frequencies lower than visible light

Step-by-step explanation:

Answer 2

B they are all radio waves with frequencies lower than visible light

Step-by-step explanation:

The electromagnetic spectrum classifies all the electromagnetic waves according to their frequency. In order from highest to lowest frequency, we have:

Gamma rays

X-rays

Ultraviolet

Visible light

Infrared

Microwaves

Radio waves

In particular, radio waves are the electromagnetic waves with lowest frequency (and longest wavelength), usually less than 300 GHz (
`300\cdot 10^9 Hz`).

Microwaves radar, radio waves and television waves are all examples of radio waves, which have frequencies lower than visible light. Radio waves are generally used for long-range communications, because given their long wavelength they are able to "bypass" huge obstacles like mountains or building, without being absorbed.