1.2 Whiz Quiz
- The first requirement for remote sensing is an energy
source which can illuminate a target. What is the
obvious source of electromagnetic energy that you can
think of? What "remote sensing device" do you
personally use to detect this energy? The answer is ...
- Assume the speed of light to be 3x108 m/s. If the
frequency of an electromagnetic wave is 500,000 GHz
(GHz = gigahertz = 109 m/s), what is the wavelength of
that radiation? Express your answer in micrometres
(mm). The answer is ...
