The discreteness of energy levels is best understood by ...

[ishan]

The discreteness of energy levels is best understood by considering the electrons to be
 
  A) like tiny planets orbiting a sun.
  B) attached to the nucleus by massless springs.
  C) much less massive than the nucleus.
  D) all of the above
  E) none of the above

Question 2

The acceleration due to gravity on the surface of Earth is g. Calling R the radius of Earth, at what distance from Earth's center would the acceleration due to gravity drop to g/16?
 
  A) 16 R
  B) R/16
  C) R/4
  D) 4 R
  E) 2 R

[josephsuarez]

Answer to Question 1

Answer: E

Answer to Question 2

D

[ishan]

Thank you!

[josephsuarez]

Always glad to help...