A question on converting MeV to GeV

  • Thread starter funnybunny
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GeVIn summary, the conversation is about a person who is stuck on a question regarding the calculation of the binding energy of a uranium 235 nucleus. They mention using a graph that shows 7.6MeV, but they need to convert it to GeV. They tried multiplying by 235, but realized that the graph was showing binding energy per nucleon. After correcting their mistake, they were able to calculate the binding energy to be 1.8 x 10^-6 GeV.
  • #1
funnybunny
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hi - I'm stuck on a question...
use the graph to calculate the binding energy of uranium 235 nucleus:

the graph gave 7.6MeV

i need to give my answers to GeV - and the mark scheme told me to 7.6Mev x 235 to give 1.8GeV??

i thought you just multiplied by 10^3.

what happened?

thanks!
 
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  • #2
funnybunny said:
hi - I'm stuck on a question...
use the graph to calculate the binding energy of uranium 235 nucleus:

the graph gave 7.6MeV

i need to give my answers to GeV - and the mark scheme told me to 7.6Mev x 235 to give 1.8GeV??

i thought you just multiplied by 10^3.

what happened?

thanks!
Welcome to PF funnybunny,

Are you sure that the graph didn't show binding energy per nucleon? :wink:
 
  • #3
Hootenanny said:
Welcome to PF funnybunny,

Are you sure that the graph didn't show binding energy per nucleon? :wink:

yeh..it did...woops
but even if you multiplied it by 235, giving the total binding energy, it's still in MeV

i did 7.6x10^6 x 235 x 10^3 which gave 1.8x10^12...which is waay too big
 
  • #4
Hootenanny said:
Welcome to PF funnybunny,

Are you sure that the graph didn't show binding energy per nucleon? :wink:

nvm - I'm such a klutz! thanks!
i got the answer
 

1. What is the conversion rate between MeV and GeV?

The conversion rate between MeV (mega-electron volts) and GeV (giga-electron volts) is 1 MeV = 0.001 GeV.

2. How do I convert a value from MeV to GeV?

To convert from MeV to GeV, divide the value in MeV by 1000. For example, to convert 500 MeV to GeV, the calculation would be 500 MeV / 1000 = 0.5 GeV.

3. Why do we use different units for energy measurement like MeV and GeV?

MeV and GeV are used to measure energy on different scales. MeV is commonly used to measure the energy of subatomic particles, while GeV is used to measure the energy of larger particles such as protons and neutrons. This allows for more precise and accurate measurements in different contexts.

4. How does the conversion between MeV and GeV impact scientific research?

The conversion between MeV and GeV is important in scientific research, particularly in the fields of particle physics and nuclear physics. By converting between these units, scientists are able to accurately measure and compare energy levels of different particles and make important discoveries about the fundamental building blocks of the universe.

5. Are there any other units for measuring energy besides MeV and GeV?

Yes, there are other units for measuring energy such as joules (J) and electron volts (eV). However, MeV and GeV are commonly used in scientific research, particularly in the field of particle physics, due to their ability to accurately measure very small and large energy levels.

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