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Author Question: Photon A has twice the momentum of photon B as both of them are traveling in vacuum. Which ... (Read 67 times)

cookcarl

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on: Jul 29, 2018
Photon A has twice the momentum of photon B as both of them are traveling in vacuum. Which statements about these photons are correct? (There could be more than one correct choice.)
 
  A) Photon A is traveling twice as fast as photon B.
  B) Both photons have the same speed.
  C) Both photons have the same wavelength.
  D) The wavelength of photon A is twice as great as the wavelength of photon B.
  E) The wavelength of photon B is twice as great as the wavelength of photon A.

Question 2

Two forces produce equal torques on a door about the door hinge. The first force is applied at the midpoint of the door; the second force is applied at the doorknob. Both forces are applied perpendicular to the door.
 
  Which force has a greater magnitude? A) the first force (at the midpoint)
  B) the second force (at the doorknob)
  C) The two forces are equal.


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at

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Reply #1 on: Jul 29, 2018
Answer to Question 1

B, E

Answer to Question 2

A


cookcarl

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Reply 2 on: Jul 29, 2018
Excellent

ghepp

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Reply 3 on: Yesterday
:D TYSM

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