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![[Post New]](/templates/default/images/icon_minipost_new.gif) 11 Feb 2008 23:53:48 IST
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carbon and silicon are known to have similar lattice structures.howevere four bonding electrons of carbon are in second orbit while that of silicon are in third orbit..how does this effect their difference in electrical conductivities?
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12 Feb 2008 00:05:05 IST
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Aliphatic ethers are purified by shaking with a ferrous salt to remove ........... which are formed on prolonged standing in contact with air.
ans peroxides
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13 Feb 2008 13:19:38 IST
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In a single slit diffraction pattern, how does the angular width of central maximum change, when:- (a) The slit width is decreased. (b) Distance between the slit and screen is increased. (c) Light of smaller visible wavelength is used? Justify your answer in each case.
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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13 Feb 2008 13:57:04 IST
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hey............
chk this out.....
a simple concept n many questions out of..........
question what happens to the fringe width?
type1
a.when the distance between the slits is increased?
b.when the distance between the slits is decreased?
type2
c.when the dist between the screen n slits is increased?
d.when the dist between the screen n slits is decreased?
type3
e.when the whole setup is dipped in the medium of refractive index n?
f.when a glass plate is interposted in b/w slits n screen?
g.when one of the slits is covered?
type4.
h.when intensity is inc/dec then wat happens to amplitude
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lighten up the darkness............
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13 Feb 2008 14:05:33 IST
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Huh
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13 Feb 2008 14:05:55 IST
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huh
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13 Feb 2008 23:12:31 IST
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thats nicely put up!!
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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13 Feb 2008 23:40:04 IST
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i start with simple ques.
why girders are made up of I shape???
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THINK BIG!
<TABLE CELLSPACING="1" CELLPADDING="1" BORDER="0">
<TR><TD>
    
<DIV ALIGN="right">Glitter Graphics</DIV></TD></TR></TABLE>
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13 Feb 2008 23:44:15 IST
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A driver in a car moves with a velocity v .Suddenly he sees a broad wall.
Should he apply the brakes or turn sharply?
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13 Feb 2008 23:45:14 IST
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apply brrakes...coz otherwise hes bound to overturn the car(and die)
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" Always remember money isn't everything but make sure you have made a lot of it before talking such nonsense!"
- Bill Gates |
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19 Feb 2008 12:19:02 IST
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how does doping effect the width of pn junction??
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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20 Feb 2008 23:15:56 IST
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A question involving thinking:
Why r the lids of the manholes on the roads made circular in shape?
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<TABLE CELLSPACING="1" CELLPADDING="1" BORDER="0">
<TR><TD>
<DIV ALIGN="right">Glitter Graphics</DIV></TD></TR></TABLE>
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20 Feb 2008 23:18:17 IST
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Ans: Simply to prevent them from falling inside the manhole.
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<TABLE CELLSPACING="1" CELLPADDING="1" BORDER="0">
<TR><TD>
<DIV ALIGN="right">Glitter Graphics</DIV></TD></TR></TABLE>
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22 Feb 2008 13:13:36 IST
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well...i was talkin abt boards questions.....but its ok!!
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Remember Cedric. Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory.
Albus Dumbledore
Goblet of Fire, Chapter 37, Page 724
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27 Feb 2008 13:16:18 IST
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