"Find Out 1 meV in Å from E1/2 Equation

In summary, the conversation discusses the relationship between energy in meV and the unit of Å, with a specific value of 9.045 Å-1 given for 1 (E)1/2. The speaker also mentions confusion about the use of units and how to solve for Å. They question the use of Å in this context and the possible conversion of 1 meV into standard units of energy.
  • #1
Niles
1,866
0

Homework Statement


Hi

I am told that 1 (E)1/2 = 9.045Å-1, where E is the energy in meV. How do I find out what 1 meV is in Å from that? All I can get is the correspondence between meV and Å-2, not meV and Å.
 
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  • #2


What does the Å represent?
Do the 1 and 9.045 have units?
Maybe your job is just to solve the equation for Å, and put in 1 MeV for E. Not a clear question in my opinion - if you have posted all of it. Normally the 1 MeV would be changed into standard units of energy (Joules) but I don't know what you should do in this case.
 

FAQ: "Find Out 1 meV in Å from E1/2 Equation

What is the significance of the "meV" unit in the "Find Out 1 meV in Å from E1/2 Equation"?

The "meV" unit stands for "milli-electron volts" and is a unit of energy commonly used in the field of physics. It is equal to one thousandth of an electron volt (eV), which is a unit of energy used to measure the energy of particles at the atomic and subatomic level.

What does the "E1/2 Equation" refer to in the context of this question?

The "E1/2 Equation" is a mathematical equation used to calculate the half-maximum energy value of a system. It is commonly used in physics and chemistry to determine the energy levels of particles or molecules.

How is the conversion of 1 meV to Å calculated using the E1/2 Equation?

The conversion of 1 meV to Å using the E1/2 Equation involves using the value of the constant "hbar" (reduced Planck's constant) and the mass of the particle in question. The final calculation is 1 meV multiplied by hbar and divided by the square root of the mass of the particle in atomic mass units (u).

Can the E1/2 Equation be used to calculate other units besides meV and Å?

Yes, the E1/2 Equation can be used to calculate other units of energy and length, as long as the appropriate constants and units are used in the calculation. It is a versatile equation that can be applied to various systems and scenarios.

What are some real-world applications of using the E1/2 Equation to find out 1 meV in Å?

The E1/2 Equation has various applications in the fields of physics and chemistry, such as in determining the energy levels of particles and molecules, calculating the energy required for chemical reactions, and studying the behavior of materials at the atomic level. It is also used in the development of new technologies, such as in designing more efficient solar cells and electronic devices.

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