Select True or False for the following statements about electromagnetic waves. 1
ID: 1731337 • Letter: S
Question
Select True or False for the following statements about electromagnetic waves.
1. Radio waves travel in vacuum at a lower speed than the visible light.
2. A vertical automobile antenna is sensitive to electric fields polarized horizontally.
3. Gamma rays can be produced in transitions of an atomic nucleus from one state to another.
4. X-rays can be produced in transitions involving inner electrons in an atom.
5. Radio waves have wavelengths longer than 1 m.
6. The Earth's atmosphere is quite transparent to infrared radiation.
7. The sun's radiation is most intense in the visible region.
Explanation / Answer
1) False
All EM waves travel at the same speed.
2) False
They are polarized vertically.
3) True
4) True
5) False
They can be in mm as well.
6) False
7) False
It is most intense in the visible and UV spectrum.