Select True or False for the following statements about electromagnetic waves.
X-rays travel in vacuum at a higher speed than the visible light.
The Earth's atmosphere is quite transparent to infrared radiation.
The sun's radiation is most intense in the infrared region.
Gamma rays can be produced in transitions of an atomic nucleus from one state to another.
A vertical automobile antenna is sensitive to electric fields polarized vertically.
Visible light is often emitted when valence electrons change their state.
Radio waves have higher frequencies than gamma rays.