Glass is transparent to wave frequencies that A) match its ...

[NClaborn]

Glass is transparent to wave frequencies that
 
  A) match its natural frequencies.
  B) are below its natural frequencies.
  C) both of these
  D) neither of these

Question 2

Infrared waves are often called heat waves because they
 
  40) Infrared waves are often called heat waves because they
  A) emanate from relatively hot sources.
  B) consist of frequencies lower than those of visible light.
  C) induce resonance in molecules and increase internal energy in a substance.
  D) are the predominant waves emitted by the sun.

[aprice35067]

Answer to Question 1

Answer: B

Answer to Question 2

Answer: C

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