John is nearsighted and cannot see things beyond 110 cm from his ...

[misspop]

John is nearsighted and cannot see things beyond 110 cm from his eyes. What is the focal length of the contact lenses that will enable him to see distant objects clearly?
 
  A) +50 cm
  B) -50 cm
  C) -110 cm
  D) +110 cm
  E) -30 cm

Question 2

By scattering alpha particles from gold, Rutherford showed the atomic nucleus to be very
 
  A) small relative to the atom.
  B) massive relative to the mass of an electron.
  C) both of these
  D) neither of these

[Liamb2179]

Answer to Question 1

C

Answer to Question 2

Answer: C