Select ALL the correct statements (AC, ADEF, etc.) A) Visible light is often emi
ID: 2154083 • Letter: S
Question
Select ALL the correct statements (AC, ADEF, etc.)A) Visible light is often emitted when valence electrons change their state.
B) The sun's radiation is most intense in the infrared region.
C) A vertical automobile antenna is sensitive to electric fields polarized horizontally.
D) X-rays can be produced in transitions involving inner electrons in an atom.
E) Radio waves travel in vacuum at a lower speed than the visible light.
F) Gamma rays can be produced in transitions of an atomic nucleus from one state to another.
G) The Earth's atmosphere is quite transparent to infrared radiation.
Explanation / Answer
A) Visible light is often emitted when valence electrons change their state. True, valence electrons are the outer electrons of an atom. When these change states, visible light is emitted. B) The sun's radiation is most intense in the infrared region. False, since we can see the sun, the most intense radiation is in the visible spectrum. C) A vertical automobile antenna is sensitive to electric fields polarized horizontally. True, if it were not, the atoms in the antenna would not have very far to move in order to pick up the signal. D) X-rays can be produced in transitions involving inner electrons in an atom. True. E) Radio waves travel in vacuum at a lower speed than the visible light. True F) Gamma rays can be produced in transitions of an atomic nucleus from one state to another. True G) The Earth's atmosphere is quite transparent to infrared radiation. False