1
Akand
·2009-03-11 07:21:29
one more stupid question...........IF THE NUMBER OF STUPID QUESTIONS ARE MORE THAN ENOUGH AND U R FRUSTRATED THEN PLEASE DO LET ME KNOW..........ill stop them hehe
Va-Vb=10 volt,Kinetic energy of2C negative charge is taken from A to B ...........
a)increase by 20J
b)decrease by 5J
c)decreases by 20J
d)increase by 5J
1
Akand
·2009-03-11 07:22:46
a better conceptual one.........
An uncharged insulated conductor A is brought near a charged insulated conductor B . what happens to charge and potential of B ?Why?
3
msp
·2009-02-26 07:44:24
hey akand for the first qn it is 0 degree.Becos the given situation satisfies the minimum deviation position and so the ray shud be "parallel" to the base of the prism
1
Akand
·2009-02-25 09:29:18
u3 is after d lens........
1
Akand
·2009-02-25 09:29:56
asish........i dont hav d answer......but im gettin a diff answer
3
iitimcomin
·2009-02-25 18:30:42
hey nice signature.......anywayz heres my ans
1
skygirl
·2009-02-25 18:51:19
for ur third question ans is C??
use refraction at curved surface distinctly for each side of the lens....
3
iitimcomin
·2009-02-25 21:12:42
sum 1 see if mah ans. is correct!!!!!!!!!!!!!!!!!!![2][2][2][2]
1
Akand
·2009-02-26 06:45:59
wel yes.......iiturcomin........its correct.........they also asked if it was anticlockwise or clockwise...........
1
Akand
·2009-02-26 06:49:23
wel wat is its name????
a....2-amino toluene
b...2-amino methyl benzene
c...2-methyl aniline
d...2-methyl benzenamine
e...one of these
f....i dunno
39
Dr.House
·2009-02-26 06:50:22
answer is 2 methyl aniline
1
skygirl
·2009-02-26 06:53:48
hey wat abt your third question ?
isnt it C?
1
Akand
·2009-02-26 06:56:23
sky.......this was a doubt......i dont kno d answers........plzz explain urself.........i thought it shud be a or b.......but y c??? explain naa
1
Akand
·2009-02-26 06:57:40
and mathi.........y only c??? i think all are correct.........coz i made this question hehehe
1
skygirl
·2009-02-26 07:32:55
explanation to ur 3rd question:
see refraction at first lens surface:
μ1/v - μ2/u = (μ1 - μ2)/R
=> μ1 /v = (μ1 - μ2)/R
=> v = (μ1 - μ2)/ μ1R
but μ1 < μ2 (tumne kaha)
so v is on the left of this surface.
now,
consider second surface .. (hopefully lens is thin !)
in the same way write the eqn..
finally we'll get: μ3 /v = (μ3 - μ2) /R
=> v = (μ3 - μ2) / μ3R
but μ3 < μ2
so agn v is to the left of this surface..
so we can see..
both the surfaces are acting as diverging surfaces...
so we get two divergent rays... hence ans is C.
(uff ! itnaa likhi :P ans C ba hua toh bahut zaada sad ho jaungi :( ) :P
3
msp
·2009-02-26 07:50:27
IUPAC name is 2 amino toluene and the common name is o-toluidine so a and e
1
Akand
·2009-02-26 07:59:15
but sky lets use logic..........the light rays are coming from a denser medium to a rarer medium .........so they will converge....and they will converge twice..........so according to our senses(without using math or phy)....i think it shud be.........convergence with one ray..........I DUNNO......but thts wat logic says
1
Akand
·2009-02-26 08:00:21
hey sanky......nice pic..........but in d organic ques......i think all are rite....i dunno
3
msp
·2009-02-26 08:01:37
akand pls refer to NCERT buk,
1
skygirl
·2009-02-26 08:03:14
denser -> rarer so converge???? !~#@!#$!$!!!!!!!!!
i dunno wat u are ssaying akand ... am sry dear [2]
@sankara..
there are few rays which are paraxial ...
others will gv distorted images... so y bother ...
1
Akand
·2009-02-26 08:10:06
wel sky.......i hav done an expt called glass slab..........and i also kno tht convex lens is a converging lens......so i used both d concepts......hehe but y bother?? u already got a pink...
1
Akand
·2009-02-26 08:12:38
k wats d first answer???????
1
Akand
·2009-02-26 08:26:53
cud u draw d figure????plzzzzzz.......
1
skygirl
·2009-02-26 08:30:04
baaaaaaaaaaap re!!
copy me hi kitna mushkil se banayi yaar !! yaha pe kaise banau [11]
i am really sorry [2] [2] [2]