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Author Topic: Physics Paper 1 question  (Read 1194 times)

Offline persian17

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Physics Paper 1 question
« on: June 08, 2009, 10:15:23 am »
Anyone know why the answer is B not D? isnt beta just an electron?
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Offline astarmathsandphysics

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Re: Physics Paper 1 question
« Reply #1 on: June 08, 2009, 10:18:43 am »
Yes a beta particle is an electron. An electron is emmited
n>p++e-so the proton number goes up by one. The mass of proton and neutron are the same so the mass doesnt change. it is B
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Offline IGSTUDENT

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Re: Physics Paper 1 question
« Reply #2 on: June 08, 2009, 10:19:29 am »
When Beta particle is emitted 1 neutron is split into 1 proton and one electron. Electron escapes and hence 1 proton is added and 1 neutron lost.
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Offline IGSTUDENT

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Re: Physics Paper 1 question
« Reply #3 on: June 08, 2009, 10:20:30 am »
Quote from: astarmathsandphysics on June 08, 2009, 10:18:43 am
Yes a beta particle is an electron. An electron is emmited
n>p++e-so the proton number goes up by one. The mass of proton and neutron are the same so the mass doesnt change. it is B
Excellent explanation
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Offline Fouad93

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Re: Physics Paper 1 question
« Reply #4 on: June 08, 2009, 10:29:37 am »
which year is that question
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