How was de Broglie's theory of the waviness of matter first ...

[pepyto]

How was de Broglie's theory of the waviness of matter first confirmed?
 
  A) By allowing two electrons to pass through each other.
  B) By passing an electron beam through a metal foil and observing the pattern of impacts on a screen.
  C) By careful microscopic investigation of individual electrons.
  D) By passing a neutron beam through a double-slit experiment and observing the pattern of impacts on a screen.
  E) By passing an electron beam through a single slit and observing the pattern of impacts on a screen.

Question 2

According to quantum theory, a macroscopic object such as a baseball
 
  A) has no wavelength at all.
  B) has an infinite wavelength.
  C) has a very short wavelength.
  D) has a very long wavelength.
  E) is really made out of microscopic baked beans.

[sierramartinez]

Answer to Question 1

B

Answer to Question 2

D

[pepyto]

Thanks for the timely response, appreciate it

[Mochi]

Gracias!