1. The angle of reflectance of electromagnetic radiation from a surface is equal to the angle of __________________.
2. For a radio telescope, Earth’s atmosphere causes refraction of the radiation from a source such that the source appears (higher/lower) ____________ than it really is.
3. The ratio of the speed of electromagnetic energy in a vacuum to its speed in a given medium is the medium’s ____________ ____ ________________.
4. Scintillation is caused by electromagnetic waves being out of _________ after passing through a dynamic medium.
5. Faraday rotation occurs when an electromagnetic wave’s _______________ is changed as it passes through magnetic lines of force parallel to the wave and moving in the same direction.
1. incidence 2. higher 3. index of refraction 4. phase 5. polarization
|