1) How can moving a car up or back a few meters make a difference
to radio reception?
Quite often when there is interference on a car radio it is because
the antenna is sitting at the trough of a radio wave and moving
the car ½ a wavelength can increase the signal strength.
2) Arrange the following order of increasing energy:
Visible radiation, Gamma Rays, X-Rays, Radio waves.
Radio, Visible, X-rays, Gamma-rays
3) Radiation theory starts with the fundamental law that…
all objects with a temperature above absolute zero emit radiation.
4) What is Kirchhoff’s Law?
Kirchhoff’s Law states that a good absorber of radiation is also
a good emitter of radiation at that same wavelength.
5) Name the 3 main spectral channels (and wavelenths) that satellite
radiometers report data from:
visible light (0.6 microns)
infrared (10 to 12 microns)
water vapor channel (6.9 microns)
6) Radiant Energy is conserved when it passes through the atmosphere
but it can change form. What are the three main physical processes
that take place when radiant energy interacts with an object:
Radiation can either be absorbed, reflected, or transmitted.
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