Recently Active Questions

1- electric fld between plates of parallel capacitor is 2.and charg on two plates are 10 and 3?find force on 1 of plate??? 2-a dipole is placed parallel to x-axis and having coordinate (x,y)...and electric field is non unifor ...

Date for AIEEE 2011 has been announced to b on 24th April, 2011. Online application starts from 23rd November. Information brochure will be available from 15th December. For complete free online resource for this exam log in ...

anant sir , u take very high tuition fees. ....... and whatever you teach i canot understand anything. ...

what is the oxidation number of C and N HCN and HNC? ...

1. show that the sum of a nonzero real no and its reciprocal cannot lie in (-2,2). Can we solve this by inequalities? 2.Find m so that 3x^2-2mx-4=0 and x^2-4mx+2=0 may have a common root. Can the eqns have a common non-real r ...

$\underline{\underline{Q:}}\Rightarrow $\lim_{x \to\0}\ \frac{sin(tanx)-tan(sinx)}{sin^{-1}(tan^{-1}x)-tan^{-1}(sin^{-1}x)}= ...

Hello, I am very curious to know why 'torque' is only the cross product of force and perpendicular distance.I just want to know the mathematical derivation for this equation.In physics,nothing can be just defined;there has to ...

find the coeffcient of (x^a)(y^b) in the expansion (x+y+xy+2)^(2008), where both a and b are even nos? ...

Find all prime numbers that satisfy simultaneously p+1=2x2 p2+1=2y2 I solved it by the most elementary method can u all do the same even to prophet Sir(its not a challenge but the simplest solution actually doesnt require num ...

is edudigm in benachity ...

if x , y , z > 0 then the value of x/y + y/z + z/x lies in the interval ...

In the base-catalysed hydrolysis of amides, they undergo nucleophilic addition of OH- and finally form acetate. In hoffmann degradation, we use OH- (of an alkali) where it extracts a proton from the -NH2 group. Why is the act ...

How to find the wedge constraint using the method of "net Work done by internal forces (in a system) is zero. " http://targetiit.com/iit-jee-forum/posts/constraint-equation-471.html For example, in the below figure..suppose t ...

1. If a,b,c are odd integers , ax^2+bx+c=0 cannot have ratioal roots. Prove it. 2. For what values of a does the eqn (2a+1)x^2-a(x-1)=2 has one root greater than 1 and other less than 1. 3. If a and b are the roots of x^2+px+ ...

Please Explain the Relative Stabilities of these compounds and arrange it in decreasing order. Also, Please Explain the causes. *Image* ...

*Image* ...

A point charge q = 1μC is brought from infinity (slowly so that heat developed in the shell is negligible) and is placed at the centre of a conducting neutral spherical shell of inner radius a = 1m and outer radius b = 2m, t ...

why alkali metals Li , Na , K cannot b stored in water???? and what is meant by thermal stability??? ...

My book says that we can distinguish between 2 hydroxy butanoic acid (A) and 3 hydroxy butanoic acid (B) by haloform tests. It says that B gives positive haloform test. I am fine with it. I don't get why A doesnot give positi ...

Suppose you drill a narrow tube (with cross sectional area A) from the surface of the earth down to the center. Then line the cylindrical wall of the tube with a frictionless coating. Then fill the tube back up with the dirt ...

What is \huge \lim_{n \rightarrow \propto }\frac{x^{n}}{n!} ????? ans : 0 (Right now I am studying in a state engg colg. in 1st yr. I came across this qsn once in success magnet of Aakash Inst. and another time while the teac ...

Can somebody provide the link for proof of velocity of sound travelling in a medium.( I believe its some experiment.) ...

find all roots of x4+x3+x2+x+1=0 including complex roots. ...

Let ABC be a triangle in which angle A = 60 degrees. Let BE and CF be the bisectors of the angles B and C, with E on AC and F on AB. Let M be the reflection of A in the line EF. Prove that M lies on BC. How do I start? ...

well hey guys, i guess sinces its december u all must be busy appling for verious colleges. and ofcourse since we all are here in targetiit well all have applied or going to apply for iit. so basicaly apart from that what all ...

The sum of the protons and neutrons in an atom is its ...

hello i've given the the test:178 on qtn 8 i saw the answer is c but if the forward reaction is endothermic( as given in the qtn. ΔH=-90 kj) then high tempo. is favourable for reaction. but answer is (c) low temp. WHYYYY???? ...

Q)A parabola is drawn to pass through A & B, the ends of a diameter of a given circle of of radius 'a' and to have a directrix a tangent to a concentric circle of radius 'b' the axes being AB and a perpendicular diameter. Pro ...

Let f(x) =(x-1)p.(x-2)q where p,q>1. Each critical point of f(x) is a point of extremum when - (Options are given) I got the critical points as 1 and 2. I don't know what do I do next. I found the second derivative but I t ...

Ques- Find all complex numbers 'z' which satisfy: 4z^{2} + 8\left|z \right|^{2}=8 Ques- Find all complex numbers 'z' which satisfy z3 = conjugate of 'z' ...