| Table of Contents |
| 1. Introduction 2. Sensors 3. Microwaves 4. Image Analysis 5. Applications |
Fundamentals of Remote Sensing
1.2 Whiz Quiz - Answers
Answer 1: The most obvious source of electromagnetic
energy and radiation is the sun. The sun provides the initial energy source for much of
the remote sensing of the Earth surface. The remote sensing device that we humans use to
detect radiation from the sun is our eyes. Yes, they can be considered remote sensors - and
very good ones - as they detect the visible light from the sun, which allows us to see. There are
other types of light which are invisible to us...but more about that later.
Back to the question...
Answer 2: Using the equation for the relationship
between wavelength and frequency, let's
calculate the wavelength of radiation of a
frequency of 500,000 GHz.
Back to the question...
| Updated2002-08-21 |  |
Important Notices |