One phenomenon that supports the quantum theory of radiation is ...

[vicky]

One phenomenon that supports the quantum theory of radiation is
 
  A) the transference of energy by a light beam.
  B) the tiny flashes when a light beam strikes a screen.
  C) interference effects with light.
  D) the tiny flashes when an electron beam strikes a screen.
  E) None of the above.

Question 2

At what temperature would the root mean square speed of oxygen molecules, O2, be if oxygen behaves like an ideal gas? The mass of one O2 molecule is 5.312  10-26 kg, and the Boltzmann constant is 1.38  10-23 J/K.
 
  A) 0.251 K
  B) 2090 K
  C) 6270 K
  D) 1.52  1023 K

[leeeep]

Answer to Question 1

B

Answer to Question 2

A