The Student Room Group

2018 OCR A level exploring physics - question 25a)ii)

oxygen + proton => Florine + neutron + gamma ray

oxygen has binding energy 2.24*10^-11
Flourin has binding energy 2.20*10^-11
the proton has kinetic energy 0.25*10^-11

the question is find the energy of the gamma ray

for my soloution I added the kinetic energy of the proton with the binding energy of the proton and subtracted the binding energy of flourine to find the energy of the gamma ray but the mark scheme said that was wrong. can anyone tell me why?
Original post by yes1234567890
oxygen + proton => Florine + neutron + gamma ray

oxygen has binding energy 2.24*10^-11
Flourin has binding energy 2.20*10^-11
the proton has kinetic energy 0.25*10^-11

the question is find the energy of the gamma ray

for my soloution I added the kinetic energy of the proton with the binding energy of the proton and subtracted the binding energy of flourine to find the energy of the gamma ray but the mark scheme said that was wrong. can anyone tell me why?


Are you referring to the question shown below?
2018 OCR A level exploring physics - question 25a)ii).jpg

If yes, are you sure proton has binding energy?
Can you also show your work and the mark scheme that you have?

Quick Reply

Latest