- #1
FelaKuti
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Homework Statement
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A particle detector shows tracks produced by two particles X and Y that were created by the decay of a lambda particle at O.
Which of the following is a correct statement about energy at the decay?
The energy of X must be greater than that of Y.
The combined energy of X and Y must be more than the energy of the lambda particle.
The mass of the lambda particle must equal the combined energy of X and Y.
The mass energy of the lambda particle must equal the total energy of X and Y.
Homework Equations
E = mc^2
The Attempt at a Solution
For the first I think we can't tell without values? Or would they be the same?
For the second, I think energy must be conserved
For the third it doesn't take into account the energy the lamba particle might have had.
For the fourth I think it doesn't take into account the mass of X and Y? I'm a bit confused on the difference between total energy and combined energy though