# Recent content by stickplot

1. ### Visible light and wavelengths

Homework Statement Ok I have two questions. 1. Light waves of which wavelength will destructively interfere due to the thickness of the bubble film? The bubble film thickness is 165 nm, with an index of refraction of n = 1.3. a= 430 nm b= 650 nm c= 860 nm d= 285 nm 2. You are...
2. ### De broglie wavelength and orbits

Homework Statement If the be Broglie wavelength associated to the first orbit of the electron inside the atom of hydrogen is 62.4 nm, what is the wavelength associated to the fourth orbit? 1. 62.4 nm 2. 124.8 nm 3. 312 nm 4. 249.6 nm Homework Equations # of...
3. ### Uncertainty principle and hydrogen atom electron

Homework Statement Using the uncertainty principle find the energy required for the electron to be confined inside the hydrogen atom. Use the radius of the atom 1 x 10-10 m for Δr. Express your answer in eV, rounded up to the nearest hundredth. Homework Equations ΔxΔp\geqh/4pie...
4. ### Uncertainty principle

o ok. and for the momentum. would i just use mass and velocity of an electron?
5. ### Uncertainty principle

Homework Statement Using the uncertainty principle find the energy required for the electron to be confined inside the hydrogen atom. Use the radius of the atom 1 x 10^-10 m for Δr. Express your answer in eV, rounded up to the nearest hundredth. Homework Equations Δx(Δp)\geqh/4pie x=...
6. ### Need help! quantum physics

alright. so i solved for n and i got 1.08 and since only integers are accepted i would round off to 1 right? and since k=1 and n=1 how do i know whether it is absorbing or not? and how could i solve with the other equation? once i found the energy of the photon what would i do after?
7. ### Need help! quantum physics

o ok. well the energy of the photon would be hc/lambda which would be 2.1 eV nm but why do we need this? i thought that you could just find n by putting in lambda and k (fundamental state) on the 1/lambda=1/k^2-1/n^2 and solving for n
8. ### Need help! quantum physics

electron volts. so we find n first right
9. ### Need help! quantum physics

ok appreciate your help. heres the question A photon with λ = 600 nm interacts with a hydrogen atom in fundamental state. Will the photon be absorbed? Justify your answer. and btw im homeschooled and im taking the ut austin high school program, and we dont get text books but its an online...
10. ### Need help! quantum physics

Homework Statement ok so i know whenever a photon is absorbed it will jump up a energy level and when it is emmited it releases energy. but my question is, for example, if k=1 (fundamental state) in a hydrogen atom and they give you the given wavelength of the photon, you solve it and you...
11. ### Absorbed photons, emmited photons

o ok. but if k=1 and i get n=1.08 and since only integers are accepted would it round off to 1 and not absorb? or since it is a larger number than 1 it would absorb? btw if it absorbs, would the rest of the energy that was left that didnt absorb turn into kinetic energy?
12. ### Absorbed photons, emmited photons

Homework Statement how can i tell if a photon is being emmited or absorbed? Homework Equations hc/lambda= energy per photon 1/lambda=r(1/n^2-1/k^2) The Attempt at a Solution photons are absorbed when the energy of the photon= energy of transition? when are they emmited? and i...
13. ### Wavelengths of photon

o ok. stupid me i see what i did now. and btw how do you know when a photon is absorbing energy? is it when the photon energy is the same to the energy transition? but im kind of confused because i thought they were always equal to each other
14. ### Photons and quantum physics

o ok. so this wouldnt absorb, because if n is equal to 1 it still wouldnt absorb because the energy of transition would not be equal to energy of the photon right? hf= 2.1 energy of transition (if n=1) i= 0 and a number like 1.08 could not be used only integers right? so that is why is no...
15. ### Wavelengths of photon

Homework Statement The wavelength of the photon emitted when a hydrogen atom undergoes a transition from the k state to the n = 1 state is around 94.8 nm. How much is k? Homework Equations 1/lambda= 1.97x10^7(1/1^2-1/k^2) The Attempt at a Solution...