Quantum Theory, particle in a ring

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The discussion revolves around a request for homework help on quantum theory, specifically regarding a particle in a ring. The user expresses uncertainty about several answers and seeks clarification. Respondents emphasize the importance of demonstrating effort and understanding before receiving assistance. They encourage the user to articulate their reasoning for the answers they provided. The conversation highlights the need for adherence to homework guidelines to facilitate effective learning.
yesmale4
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Homework Statement
Consider the following statements for a particle in a ring. Determine whether each statement is true or false.

1.The energy levels are equally spaced.

2. The ground-state energy of the system is zero.

3.The angular momentum Lz of a particle is quantized with only possible values of mℏ, (m=0,±1,±2,…).

4. Energy transition that absorbs the photon of the longest wavelength is from m=0 to the m=1 level.

5. Ψ(φ)=cos(φ) is an eigenfunction of the kinetic energy operator T.

6. All energy levels of the system are degenerate.
Relevant Equations
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hello i would to get some help with my homework.
1. true
2. i dont know
3. true
4. i dont know
5, false
6. i dont know
about 2,4,6 i really have know idea what to think I really appreciate help
 
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Thread 'Correct statement about size of wire to produce larger extension'
The answer is (B) but I don't really understand why. Based on formula of Young Modulus: $$x=\frac{FL}{AE}$$ The second wire made of the same material so it means they have same Young Modulus. Larger extension means larger value of ##x## so to get larger value of ##x## we can increase ##F## and ##L## and decrease ##A## I am not sure whether there is change in ##F## for first and second wire so I will just assume ##F## does not change. It leaves (B) and (C) as possible options so why is (C)...

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