When an electron de-excites from the third quantum level to the second, and then to the ground state, two photons are emitted
The sum of the emitted frequencies equals the frequency of the single photon that would be emitted if de-excitation were from the third to
A) the second level.
B) the ground state.
C) any other level.
D) none of the above
Answer: B
You might also like to view...
Henrietta Leavitt discovered the period-luminosity relationship for ____________________
Fill in the blank(s) with correct word
Why is Galileo Regio, the large circular feature on Ganymede, so dark?
A) It is composed of dense basaltic mantle rock that once flowed like lunar mare. B) It is the result of micrometeorite dust settling onto it over several billion years. C) It has an asphalt-like material that is like the dark side of Iapetus of Saturn. D) It is the result of ultraviolet light from the Sun interacting with the ice and creating a substance that is quite dark. E) It is the site of a recent meteorite impact that scattered a lot of dark, rocky material.
Contrast meteoroids and asteroids
What will be an ideal response?
As a body falls through air starting from rest, its velocity
a. stays constant. b. continuously decreases. c. continuously increases. d. gets larger and larger, eventually reaching a constant value. e. gets smaller and smaller, eventually approaching zero.