Displaying Posts by subhomoy~~ATGS Bakshi 1 - 100 of 498
Last 100 threads by subhomoy~~ATGS
12 Hrs 105/4·magnetism doubts:hc verma magnetic field due 2 current ques:5 &6
.plzzzz anyone hlp.............
urgent;;;;
12 Hrs 302/15·CURRENT DOUBTSS.....:):):1)Can anybody please explain me the various methods for finding the equivalent resistence in a given ckt.m having a lil bit prob in this .....i just only noe the simple methods like of pointing out th..
15 Hrs 48/5·a general doubt in electr..:we say that conductors r called so coz they have lot of free electrons , which r generated coz in conductors electrons r loosely held and in insulators they r tightly held so no free electrons..........
23 Hrs 857/26·Criticism...:Well I heard a criticism about TiiT today which i kind of agree to... what are your ideas on the same?
There is a student of mine who visits tiit and he said that the problem is that everyone ask..
2 Days 427/15·ANY BRILLIANT TUTORIALS S..:HI.....I AM TAKING BRILLIANT TUTORIALS CORESPONDENCE COURSE FOR AIEEE 2011......
IS THERE ANYONE ELSE ON THIS SITE TAKING BRILLIANT TUTORIAL COACHING SOTHAT WE CAN SHARE INFORMATON ON THE SUBJECT, MA..
2 Days 133/9·adas gupta:is a das gupta book good for JEE ?
3 Days 187/12·mole concept:what is the difference between atomic weight and gram atomic weight of any element???
3 Days 34/1·atomic structure: atoms may be regarded as comprising of p's,n's and e's.if the mass attributed by electrons was doubled and that by neutrons was halved d at mass of C-12 'll b?
a)approx. the same
b)doubled
c..
3 Days 87/2·a prob from rd sharma:If tan[frac]θ2[/frac]=[frac]√1-e√1+e[/frac]tan[frac]α2[/frac],then cos α=?
Plz show the steps also along with the solution....
4 Days 76/3·pink posts:There should be something like pink posts for good articles. otherwise no one is adding articles.
4 Days 148/9·trigo:if x2- 2cos∂ x +1 = 0 and y2 - 2 cos∞ y + 1 = 0 then 2cos(∂+∞) is equal to
4 Days 197/16·googly from ATGS 15:after quite sometime now!!!
well in this question i will give a question and 2 solutions to it...the people will have to tell which one is correct and why the other one is wrong!!!!
so here goes..
4 Days 1037/31·Two rods, Two hinges.:[image]33460113.jpg[/image]
The setup shown consists of two identical rods (mass m) hinged together at the ends.
This setup is held in the position shown.
Now we start applying a constant force F..
5 Days 112/10·doubt:if we say tht an electron consist of two parts then each part will be having -ve charge so they must repel each other.....so the electron must break in those parts but this not in real then which for..
5 Days 395/18·Motivation:Today I was just watching the big bang on discovery science.
Somewhere deep inside, the motivation to study comes. I'll go study some 6 hours now. But the thing is that mostly till the next 4-5 days ..
5 Days 68/4·cool ques plzz see :if we keep a fish in btw the plates of a capacitor can we detect the freshness of fish ?????if yes then how???
try it .................................think!/..if u r able 2 answer it this really mea..
5 Days 41/2·Simple one:Why doesn't 1 mole of water in gaseous state fall while 1mole of water in liquid fall from same height?
6 Days 69/3·jee question!!!:If total number of runs scored in n matches is ([frac]n+14[/frac])(2n+1-n-2) where n.1, and the runs scored in the kth match are given by k(2n+1-k), wher 1≤k≤n. Find n.
6 Days 112/3·just for fun -->You Might..:You Might be an Engineer If...
... you know the second law of thermodynamics but not your shirt size.
... someone tells you its a nice day, and you respond with "it's 70 degrees Fahrenheit, 25 degre..
6 Days 394/17·Help me out{Electric fiel..:A semicircular ring of mass m is kept in x-y plane with centre at origin.It
is charged in such a way such that charge/unit length varies as λ=λo[/ss]cosθ .
Find accelration of ring when electric ..
6 Days 198/10·atomic structure:Q→
A sample of H-atoms containing all atoms in some excited state is irradiated with light of wavelenth ∂ and atoms get reexcited to furthur higher orbit. on removing the light source , atoms de-..
6 Days 76/2·introduction to OC:The specific rotation of a pure enantiomer is +12 degrees . It is isolated frm a reaction with 20% racemisation and 80%retention . what would be its observed angle of rotation??
plzz tell also how ..
7 Days 267/21·something about the numbe..:there is a beautiful equation
eiπ+1=0
it has e,i,π,1,0
except i all are constants
my question is simple
is 'i' a constant number??
[hide]please mereko gali mat dena if you feel the question is..
7 Days 200/10·which one to choose:
we have subjects -philosophy,sociology,economics,literature,linguistics,physchology ,or arts..............
we have to choose any one from these ..
plz help which one to choose ???
so that..
7 Days 23812/429·Re-exam.............:Most of us aren't happy with JEE-2010 and the way it was conducted?Can we do something?Can we have a re-exam?
those in support of a re-exam do reply here............
8 Days 350/12·Crawling ant-Check this o..:A rubber band with initial length L has one end tied to a wall. At t = 0, the other end is pulled away from the wall at speed V (assume that the rubber band stretches uniformly). At the same time, an ..
8 Days 104/8·permutation nd combinatio..:1.How many 4 digit numbers divisible by 4 can be made with the digits 1,2,3,4,5 if repitition of the digits is not allowed?
2.Determine the number of natural numbers smaller than 104,in the decimal..
8 Days 206/7·kinematics:a healthy young man standing at a distance of 7m from a 11.8 m high building sees a kid slipping from the top floor . with what speed (assumed uniform ) should he run to catch the kid at an arm height..
8 Days 90/3·kinematics:a ball is dropped from a height of 5m onto a sandy floof and penentrates the sand upto 10 cm before coming to rest . find the retardation of the ball in sand assuming it to be uniform.
11 Days 302/14·graphs from ATGS 1:due to lack of QOD's i had started googly from ATGS ... now that we are getting ample number of QOD's and no Graph of the day's
i start this trend now :P:P
Draw the graph of:
y=||{x}
[hid..
11 Days 293/22·infinity?:Which of these is true?
Infinity a perfect square?
Infinity is a Real Number
Infinity is a Even number
It is an odd number
It is both even and odd
It is neither even nor odd
It is a Integer..
13 Days 527/26·The missing energy.:A body starts sliding (from rest) without friction down a hill of height h. In the beginning the body has potential energy and no kinetic energy; at the end the body has only kinetic energy. It follow..
14 Days 74/2·LOL what was this??:Call Mr. Analyst
Total Students Appeared: 258
Average Marks: -4.88
Maximum Marks: 999.99
Your Marks: 10
Your Percentile Rank: 100.00
14 Days 148/2·Test:41 QNo:6:find the sum of the roots of the eqn. dy/dx=0, where y=(x8+7x6+5x5+
3x4+2x2+1)(3x3+x+3)
14 Days 72/2·X-rays:Why does the characteristic spectrum(they occupy the peaks) have more relative intensity than Continous spectrum?Secondly why does Kalpha[/ss] occupy a higher peak than Kbeta[/ss] whereas the energy g..
15 Days 1076/36·googly from ATGS 13:last one for today!
suppose we are charging a capacitor of capacitance C across a potential difference(battery) of V.
Energy stored in capacitor = [frac]12[/frac]CV2
work done by battery=q.V
..
17 Days 176/7·SILLY QUESTION : Charging..:Hey...guys..... can neone plz help me.....
i am totally confused abt this concept of charging nd discharging of the capacitors....
what does the term Q = Q0[/ss] e-t/RC represent ????
same is the..
20 Days 165/5·Test:108 QNo:9:two bodies have a mass ratio m. They are thrown from a tower to another with the same initial conditions. The ratio of their heights is also m. What is the ratio of their times of flight!?
20 Days 116/5·Capacitance:Energy is stored in :
a) positive plate of the capacitor
b) negative plate of the capacitor
c) both the plates of the capacitor
d) none
20 Days 212/8·googly from ATGS 14:a well known one, but still very amusing(i think this has been already been discussed but still):
An airplane has 100 seats, and 100 passengers were assigned seats. The first passenger enters the..
20 Days 111/2·Doubt in RC CIRCUIT:[image]54281206.jpg[/image]
[hide]Ans.q2 only if you are 100°/° sure[/hide]
20 Days 925/13·Star Delta Method:http://www.allaboutcircuits.com/vol_1/chpt_10/13.html
I have resisted a lot in the past against this method.
I really feel that this method takes away the joy of solving complex circuits and sho..
20 Days 1389/22·ALL THE SMILEYS:
Just type > [one of the following numbers]
from left to right (1 - 50 )
// 18 19 no smiley
20 Days 71/2·Electric field : Conducto..:Can anyone tell what is the direction of electric field on the surface of the conductor.....
Is it Radial or tangential????????????
23 Days 379/10·Grounded Cube:The cube shown below has 5 faces grounded. The sixth side, insulated from the others, is held at a potential V0[/ss]. What is the potential at the center of the cube and why?
[image]51951921.jpg[/ima..
24 Days 71/2·series ke doubt!!:s=1+2+4+8+16+..........∞
now 2s=2+4+8+16+........∞
so, 2s=s-1
s=-1
but, s=1+2+4+8+16+..........∞
i.e., s=+ve
so,-1 is positive
ohh my god!! i ll get mad!! :P
25 Days 54/1·easssy integrations..:http://codecogs.izyba.com/gif.latex?\int%20\frac{cos\:%202x-cos\:2\alpha%20}{cos\:x-cos\:\alpha%20}dx[/im]
26 Days 307/14·Multi correct answer (mec..:Fig shows 2 identical blocks of mass m kept on a smooth floor. Block A is connected with a just straight string and block B is connected to rear wall with a relaxed spring. Assume that the floor of th..
27 Days 220/14·Stoichiometry: 1) What is detonating gas?
2)When the mixture of MgCO3 & CaCO3 was heated for a long time, the weight decreased by 50%. Calculate the percentage composition of the mixture.
3)Calculate the weig..
30 Days 481/29·EQUATION!: The number of non- negative integral solutions of x1+x2+x3+x4=20 with at least one of the xi ( i=1,2,3,4) is even is:
(a) 1500
(b) 1470
(c) 1450
(d) 1606
32 Days 347/10·Why this favor to momentu..:Why is it that momentum is mv while kinetic energy is 1/2 m v2
and not some other way.. like momentum is 2mv, while KE is mv2
A very very basic and important question which i would like some..
35 Days 284/5·tell me the answer:[image]51782724.jpg[/image]
the two plates of a capacitor with capacitance C is given q1 and q2 charge,,the system is as shown where R is resistance..the key is closed at t=0 find charges on the plat..
36 Days 251/3·googly from ATGS 8:i am back with it again.........
think
as air gets heated up, it rises up
so is there any doubt??
no, so all air that gets heated up rises up....
then answer this siimple question....
if..
38 Days 315/12·Interesting sums!:1)There are 4 boys and 3 girls. What is the probability the boys and girls sit alternately?
2). Two trains are 2 kms apart. Speed of one train is 20m/s and the other train is running at 30 m/s .Len..
38 Days 689/27·Practice....:long time since posted ques.............here are some for 2011 aspirants
daily updates.....
Day1
Q1 Express[frac]1*3*5*...*(2n-1)2*4*6*8....*(2n)[/frac] as [frac]a2w[/frac] where a is odd and w<2..
39 Days 553/28·Daily Graph 16-01-09:y=(x3-1)/(x-1)
I am giving an easy one this time because to the tougher ones no one is getting a solution ;)
41 Days 540/21·take our test:Below are four (4 ) questions and a bonus question.
You have to answer them instantly..
You can't take your time, answer all of them immediately .
OK, DONE?
Let's find out just how clever y..
41 Days 122/2·doubt in magnetism basics..:[image]52432316.jpg[/image]
yeah so my doubt...
magnetic field= weber/squared metre
thus weber must be the unit of NUMBER of field lines
but then since weber signifies number of field li..
42 Days 175/5·non-interesting sums!:at moment t=0 a particle is set into motion at the velocity v0[/ss]..whereupon it begins changing as per v= v0[/ss][1-t/b] where b=constant.plot vx[/ss](t) and displacement x(t) curve!
43 Days 1062/48·congruences A-Z:this thread is mainly intended to give some insight into congruences and how to solve various jee related problems using that concept..
definition of congruent:
A number `a` is said to be cong..
43 Days 147/3·aromaticity :in aromaticity it is required condition that there is at least one unhybridised p-orbital.what does it mean?
44 Days 207/5·kaymant sir 1:[image]52116914.jpg[/image]
Is
N= mg(cos α+sinα )
f= mg(cosα-sinα)
http://codecogs.izyba.com/gif.latex?\alpha%20\leq%20\frac{\mu%20-1}{\mu%20+1}[/im]
45 Days 1279/56·electrostatics dobtSS......:Point charges q and --q are located at the
vertices of a square with diagonals 2l as shown
. Find the magnitude of the electric
field strength at a point located symmetrically
with respect to t..
45 Days 176/3·googly from ATGS 12:hey this is another one from electrostats!!
suppose we are to find the electrostatic fiield at a point on the axis of a uniformly charged ring!
i am not going to type the whole derivation now ..
46 Days 217/8·god:give your opinions on existece of god
mine :
[hide]sometimes i feel he is there
but sometimes
i become an atheist [/hide]
46 Days 144/5·A STUPID DOUBT!:[image]51988008.jpg[/image]
plz give me the solution for this one!
46 Days 217/6·googly from ATGS 11:Consider a solid NON-CONDUCTING sphere(of radius R) of mass M bearing charge (+)Q uniformly distributed over its volume...
at a distance a(< R) there is a spherical cavity in the sphere of radius r..
46 Days 104/3·number n:Two mathematician are A&B plays a co-operative game.The computer selects some secret positive integer n less than 60 (both knows that n<60 but they dont know its value) .the computer tells the unit di..
47 Days 206/9·Another confusion......Ar..:[image]51949208.jpg[/image]
Arrange them in increasing order of stability With reasons.........
47 Days 212/5·Aromatics...:THIS QUESTON IS STRICTLY FOR PRITISH SINCE HE THREATENED TO SHOOT ME IF I DO NOT GIVE HIM AN ORGANIC QUESTION AND I AM AFRAID OF THAT :P
A soln. of 0.01 mole tert-butyl peroxide in excess ethylbenz..
47 Days 450/11·Finding Equivalent resist..:[image]51435269.jpg[/image]
Please explain the approach clearly.......
48 Days 138/3·ques regd functions:Q1Graph the inequality |x|+|y|≤1
Q2)When we shift the graph of(x) through a towards left, we transform f(x) to f(x-a).Say funct be y=x.If I change it to y=(x-1). first f(2)=2, f(3)=3 f(4)=4.Now (3)..
48 Days 74/1·shifting of graph:Q2)When we shift the graph of(x) through a towards left, we transform f(x) to f(x-a).Say funct be y=x.If I change it to y=(x-1). first f(2)=2, f(3)=3 f(4)=4.Now (3)=2 f(4)=3 f(2)=1.this means initiall..
49 Days 75/2·stoichiometry:0.4 gram hydrogen combines with 3.2 gram oxygen to produce water. H2[/ss]S is produced by combination of 0.25 g hydrogen and 4.0 gram sulphur. 1 gram of sulphur combines with 1 gram of oxygen. Show th..
49 Days 168/7·Organic help:[image]41828639.jpg[/image]please tell the name of this compound....
50 Days 244/7·electrophilic aromatic su..:[hide]after many days :P
[/hide]
from the reaction of 1,3,5-trimethylbenzene (mesithylene..wat a cute name :P) with HF and BF3[/ss], Olah isolated at low temperatures a bright yellow solid whose ele..
51 Days 376/19·An empty mind is devil's ..:http://codecogs.izyba.com/gif.latex?%5Cint_%7B-1%7D%5E%7B2%7D%7Bx%5E2%7D%20dx[/im]
whats the need to integrate ?????jsut fill in values..
(2)^2-(-1)^2
=4-1
=3
51 Days 259/7·ATGS is stuck in MECHANIC..:A boat moves relative to water with a velocity which is n(=2) times less than the river flow velocity. At what angle to the stream direction must the boat move to minimize drifting??
56 Days 279/9·Gauss Law(please solve):1.A point charge is placed at the origin.Calculate electric flux through the open hemispherical surface:......
{x-a}2+y2+z2=a2;x≥a
Ans.q/2ε0[/ss]*{1-1/[sqrt]2[/sqrt])
2.A point charge is lo..
68 Days 1375/70·16th December 2008:Which of these is greatest
.9 (0.9999999999999999999................)
1.01 (1.00000000000000.................0001)
1
??
71 Days 97/2·Function doubt:a function f(x) satisfies f(1)=3600 and f(1)+f(2)............f(n)=n2f(n)
for all +ve integers n>1
find f(9)
72 Days 580/30·Belting the earth...:A belt is fit around the equator.
Suppose it was 1 meter extra in length, and it was lifted till it was no longer slack.
How high above the Earth's surface would you then be?
A diagram is..
72 Days 183/6·Neopentyl chloride:because of the great tendency of neopentyl carbocation to rearrange neopentyl chloride cannot be made from neopentyl alcohol...
how would u prepare neopentyl chloride from alcohol?
73 Days 273/11·Conceptual Problem - Appl..:[image]49099732.jpg[/image]
If a positive point charge q is kept at the center of a distribution ( equilateral triangle with side a)
then what is the flux through each of the sides of the triangle?
..
73 Days 282/12·Why is a mirror not white..:We say that something is white in colour because it reflects all the incident wavelengths...
Why is it that Mirror is not white? Because, even mirror reflects back all the incident colours!
73 Days 340/15·card game:Charlie has 7 cards numbered 1, 2, 3, 4, 5, 6 and 7 and randomly deals 3 of them to Alice and 3 to Bob. All three people look at the cards that they hold. Can Alice and Bob communicate with each othe..
73 Days 131/9·Just a sec 2:Arrange the following compounds in order of increasing dipole moment
Toulene (I)
m-dichlorobenzene (II)
o - dichlorobenzene (III)
p - dichlorobenzene (IV)
(A) I < IV
74 Days 96/2·alcohols<=>ethers...:how do you account for the fact that, although diethyl ether has a much lower boiling point than n-butyl alcohol, it has same solubility(8 grams per 100 g) in water?
74 Days 132/9·Physics Doubt 1:When one swims across a flowing river,maximum energy is spent in
a)first 1/3rd of distance
b)second 1/3rd of distance
c)last 1/3rd of distance
d)equal energy is spent throughout
74 Days 173/5·perfect sqares.............: post different methods to find if 22051946 is a perfect square . [hide] at least 5 shorter methods[/hide]
74 Days 240/11·Shell explodes and so doe..:A shell explodes in a region of negligible gravity field giving out fragments of equal mass, then it's total :
(a) momentum = that before collision
(b) momentum and K.e depend on mass of the fragmen..
75 Days 153/4·sss:http://codecogs.izyba.com/gif.latex?%5Ctexttt%7Bfind%20the%20domain%20of%20%7D[/im]
http://codecogs.izyba.com/gif.latex?%5Csqrt%7B2%5Cleft%5C%7Bx%20%5Cright%5C%7D%5E2%20-3%5Cleft%5C%7Bx%20%5Cr..
75 Days 192/9·HELP ATGS!!SN2!!:[image]49475986.jpg[/image]
(I)→ Ethyl 1-phenyl-2-propyl ether α=+19.84°
(II)→Ethyl 1-phenyl-2-propyl ether α=--19.90°
a) account for the fact that the ethers obtained by two routes hav..
75 Days 99/1·optical....organic doubts..:this might be silly bt this is my dbt..
suppose an optically active substrate undergoes a reaction such that the configuration is retained [hide]i.e. no bonds of the chiral atom is broken[/hide]
..
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