When an atom emits radiation A) an electron moves in precisely ...

[nramada]

When an atom emits radiation
 
  A) an electron moves in precisely one complete orbit around the nucleus.
  B) a photon makes a quantum jump from one quantum state to another.
  C) an electron makes a quantum jump from one quantum state to another.
  D) a proton strikes a neutron to create a photon.
  E) it emits a small portion of its electric charge.

Question 2

A certain fuse blows if the current in it exceeds 1.0 A, at which instant the fuse melts with a current density of 620 A/cm2. What is the diameter of the wire in the fuse?
 
  A) 0.45 mm
  B) 0.63 mm
  C) 0.68 mm
  D) 0.91 mm

[mcabuhat]

Answer to Question 1

C

Answer to Question 2

A