Photoelectric effect wavelength

AI Thread Summary
To find the wavelength of an emitted electron given its kinetic energy, one can use the kinetic energy equation E=0.5mv² to determine the velocity (v) of the electron. After finding v, the de Broglie wavelength can be calculated using the relationship λ = h/p, where p is the momentum. There is some confusion regarding whether to apply de Broglie's relationship or Planck's equation, as the latter typically pertains to electromagnetic radiation. Clarification on the specific question posed would help in determining the appropriate approach. Understanding the context of the question is crucial for selecting the correct formula.
blindsided
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This is not a specific question; I'm just unclear about a concept.

Homework Statement



Given the kinetic energy of an electron emitted, how would you find the wavelength?

Homework Equations



E=h*frequency

or

E=0.5mv2

The Attempt at a Solution



I'm thinking I would use the secon equation, find v, then use de Broglie's relationship to find wavelength. Am I on the right track?
 
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blindsided said:
I'm thinking I would use the secon equation, find v, then use de Broglie's relationship to find wavelength. Am I on the right track?
Assuming that the question is to find the de Broglie wavelength of the electron, then you are on the right track.
 
Hmm...
The question hadn't specified de broglie wavelength- hence my confusion as to whether I would use de Broglie's relationship or just Planck's equation.
I thought Planck's equation only pertained to EM radiation?
 
Post the question word for word as it was given to you.
 

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