All AP Physics 2 Resources
Example Questions
Example Question #1 : Principles Of Quantum Mechanics
Determine the frequency of orange light, .
Possible Answers:
None of these
Correct answer:
Explanation:
Using
Converting to and plugging in values
Example Question #1 : Principles Of Quantum Mechanics
Determine the photon energy of orange light, .
Possible Answers:
None of these
Correct answer:
Explanation:
Using
is the photon energy
is Plank's constant,
is the speed of light,
is the wavelength
Converting to and plugging in values:
Example Question #1 : Principles Of Quantum Mechanics
A beam of light is traveling at approximately in a very dense medium. Given that the frequency of the light beam is , what is the wavelength of the light beam? Suppose that the speed of light in a vacuum is .
Possible Answers:
Correct answer:
Explanation:
The wavelength of the light beam doesn't depend on the speed through the medium. As such, as can solve for wavelength by simply solving:
Where is frequency and is the speed of light in a vacuum.
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