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![[Post New]](/templates/default/images/icon_minipost_new.gif) 20 Jul 2008 21:05:45 IST
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when alpha particles are sent through a thin foil ,most of them go straight through the foil.....answer: is this is because 1.alpha particles are much heavier than electons....is this reason is correct 2.most part of atom is empty space
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20 Jul 2008 21:08:54 IST
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second one is correct
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"All of us are God's creatures... just some are more creature than others." |
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20 Jul 2008 21:10:34 IST
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BOTH.
1- If they were light, their path wud have changed due to electron-alpha particle interaction(electrons are -ve charged and alpha particles +ve charged).
2- If most of the atom was not empty space, the alpha particles wud have collided with atoms and deflected from their path.
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The quality of a person's life is in direct proportion to their commitment to excellence, regardless of their chosen field of endeavor.
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20 Jul 2008 21:41:16 IST
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20 Jul 2008 22:34:42 IST
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@krish1092,
Arre to maine kab kaha that alpha particles have empty space???? :O :O :O
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The quality of a person's life is in direct proportion to their commitment to excellence, regardless of their chosen field of endeavor.
It is during our darkest moments that we must focus to see the light.
Check out my blog at:
http://tarinbansal.blogspot.com/
Posts:
Can marks really judge a student??
Some myths about Chemical Engineering.
(A must see for every student)
Back to goiit, this time with Baby Veerappan. :D |
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20 Jul 2008 22:47:21 IST
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the most part of the atom of the foil is empty.. hence the alpha particles pass through...
answer should be 2...
tarin might be right abt the 1st option but m nt sure abt it so won t suggest it to ya.... and moreover no examination wud award u for such an answer.. i think evn the answer in the solution wud b 2
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20 Jul 2008 23:04:07 IST
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@mukulaish,
1 is also correct. Its given in many books including NCERT.
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The quality of a person's life is in direct proportion to their commitment to excellence, regardless of their chosen field of endeavor.
It is during our darkest moments that we must focus to see the light.
Check out my blog at:
http://tarinbansal.blogspot.com/
Posts:
Can marks really judge a student??
Some myths about Chemical Engineering.
(A must see for every student)
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20 Jul 2008 23:13:21 IST
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Both are correct. You can refer the books if you like......................
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God does not care about our mathematical difficulties. He integrates empirically. ~~~Albert Einstein (1879-1955)~~~~
To divide a cube into two other cubes, a fourth power or in general any power whatever into two powers of the same denomination above the second is impossible, and I have assuredly found an admirable proof of this, but the margin is too narrow to contain it.~~~Pierre de Fermat (1601-1665)~~~
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20 Jul 2008 23:21:21 IST
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both r correct ...alpha particles have +2 charge which is definately heavier thn electron charge ....
for furthur observations regarding alpha particles ,,shud study rutherford's model
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21 Jul 2008 13:34:07 IST
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Both are correct
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Krishna Gopal Singh
B.Tech Chemical Engg
IIT Delhi 2002
Currently doing PhD from IIT Delhi |
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