What does the phenomenon of interference demonstrate? A) the ...

[Wadzanai]

What does the phenomenon of interference demonstrate?
 
  A) the wave nature of light
  B) the polarization of light waves
  C) the quantization of the atomic orbitals
  D) the particle nature of the photon
  E) the process of ionization

Question 2

In our best current theory, the first quasars formed about:
 
  A) 14.5 billion years ago.
  B) 13 billion years ago.
  C) 12 billion years ago.
  D) 11 billion years ago.
  E) 9 billion years ago.

[amanda_14]

Answer to Question 1

D

Answer to Question 2

B

[Wadzanai]

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[amanda_14]

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