If a wave's frequency doubles and its speed stays constant, its ...

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If a wave's frequency doubles and its speed stays constant, its wavelength
 
  A) becomes 16 longer.
  B) is also doubled.
  C) is unchanged, as c is constant.
  D) is now 4 longer.
  E) is halved.

Question 2

Most pulsars are known only as radio sources, but a few of the younger ones, like the Crab and Vela, also give off visible and even X-ray energy.
 
  Indicate whether the statement is true or false

[triiciiaa]

Answer to Question 1

E

Answer to Question 2

TRUE

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Thank you!

[triiciiaa]

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