Particle (infinite 1-D well)

  • Thread starter mss90
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  • #1
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Homework Statement


If a particle (infinite 1-D well) in ground state n =1 with an energy 1.26 eV above E=0. Whats the energy needed to get it to 3rd excited state n =4?

Homework Equations




The Attempt at a Solution


any hints?
 

Answers and Replies

  • #2
ZetaOfThree
Gold Member
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You need to attempt the problem before we will help.
 
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  • #3
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Im thinking En = h2kn2/(2m) or En = n2π2ħ2/(2mL2)?
 
  • #4
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m= 9.11E-31kg
ħ=h/2pi
a=(pi2 ħ2/E2m)*12
a=1.66E-34/2.3E-30
a= 7.22E-5eV

I tried this
 

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