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Planck Constant Question

  • Thread starter DaltonGR
  • Start date
  • #1
2
0
Hello,

First time at this site really good.

So on to the point.How can i calculate the Planck constant so i can compare it with the already known number for it??its for a physics test and i cant find out ...

Thnx in advance
 

Answers and Replies

  • #2
551
1
You can do this with the photoelectric effect. You know the equation [itex]KE_{max} = hf - \phi[/itex], where [itex]\phi[/itex] is the work function of the metal and [itex]KE_{max}[/itex] is the maximum energy of the emitted electrons. You need to relate that equation to that of a straight line, ie. y = mx + c, then you can calculate a value for h.
 
  • #3
2
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Because im not that good can you help me more.It will save me

thnx
 
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