Recently Active Questions

*Image* What is the IUPAC name ?? ...

tri methyl methane magnesium bromide on adding heavy water gives what ? ans gvn (CH3)3 -C-D but why isnt it ( CD3)3-C-D ?????? ...

Edge of a cube is measured to be 1.2x10-2. The volume should be recorded as A) 1.7 x 10-6 m3 B) 1.73 x 10-6 m3 C) 1.70 x 10-6 m3 D) 1.728 x 10-6 m3 ...

In da fol. how many sig. fig. r ther 1) 0.070 2) 0.07*10^-1 3) 70*10^-3 4) 0.70*10^-2 ...

Q1) Rate of Physisorbtion increases with A) Decrease in Temperature B) Inc in Temp C) Dec in pressure D) Dec in surface area Q2 Lyophilic sols are A) Irreversible sols B) Prepared from inorganic compounds C) coagulated by add ...

*Image* 1ST PART: WHAT IS THE CURRENT FLOW THORUGH ALL THE RESISTORS ? ASSUME THAT BATTERY HAS AN INTERNAL RESISTANCE OF R/3 *Image* ...

http://www.tutorvista.com/content/physics/physics-i/measurement-and-experimentation/micrometer.php iT TEACHES EVERYTHIN ABT THESE TWO INSTRUMENTS N MANY OTHERS AS WELL ...

The whole length of the screw of screw gauge is 4 cm this corresponds to 40 rotations of the screw Also , the circlular scale is marked at every 1 degree. Fidn the Pitch and the least count ...

least count of .0001 m the pitch is 1 mm fidn the no of divisions on the circular scale ...

C1 andC2 aretwo concentric circles the radius of C2 being twice of C1 from a point P on C2, tangents PA andPB are drawn to C1. Prove that the centroid of the triangle PAB lies on C1 ...

Let C1 and C2 be two cirlces with C2 lying inside C1. A circle C lying inside C1touces C1 internally and C2 externally. Identify the locus of the center of C ...

Let T1, T2 be two tangents drawn from (-2,0) oneo the circle C:x2+y2=1. Determine thecircles touching C and having T1, T2 as their pair of tangents. Further, find the equations of all possible common tangents to these circles ...

Prove \sum_{x,y,x}^{}{\sin x \sin y \sin(x-y)+\sin(x-y)\sin(y-z)\sin(z-x)} = 0 JEE 1978 ...

Is there any quick method of finding if 4 given pts are concyclic or not? (finding the eqn of the circle thru 3 pts and then checking the 4th pt in the eqn is really looooooooooong) ...

A wire of length l=6±.06 cm and radius =0.5±0.005 cm and mass m=0.3±0.003 gm. maximum percentage error in density is ? ...

Pressure depends on distance as P=\frac{\alpha}{\beta}exp(\frac{-\alpha z}{k\theta}) where alpha, beta are constants, z is distance, k is boltzmann's constant and theta is temperature. The dimension of beta is? ...

sin4x+4cos2x - 4sin2x+cos4x = cos2x *mistake in typing.. corrected! ...

AFTER IT HAS BEEN SEEN THAT BASHING THE SITE IS OF 8 PAGES NOW AND IS ON THE VERGE OF BECOMING THE HOTTEST TOPIC ON TARGET IIT (SORRY ANI)[4] NOW I AM TAKING THE PRIVILEGE TO START A TOPIC IN WHICH THERE SHOULD BE NO BASHES O ...

not at all related to iit jee..but still..does ne1 know bout these? *Image* ...

Chennai IIT ians i am a very average student pping for JEE-2009, can u pls help me or guide me abt the 20day preparation and i am going to the IIT madras on 24th of this month.can u pls help me guide me at any of the spot at ...

find the remainder when 3100 is divided by 100 (post ur entire method please ) ...

A sound wave has a frequency of 2 KHz and wavelength of 35 cm. How long will it take to travel 1.4 km. (a) 600m/s (b) 700m/s (c) 800m/s (d) 900m/s in this question v have to find out time and the ans. r given in m/s and i got ...

the dipole moment of a system of charge +q distributed uniformly on an arc of radius r subtending an angle ∩/2at its centre where another charge -q is placed is (a)2√2qr/∩ (b)√2qr/∩ (c)qr/∩ (d)2qr/∩ soln also ne ...

The mean density of sea water is ∂ and bulk modulus is B.The change in density of sea water in going from surface of water to depth h is ...

the e field ina region is given by E=4axy√zi+2ax2√zj+ax2y/√zkwhere a is apositive constant eqn of equipotetial surface (a)z=c/(x3y2) (b)z=c/(xy2) (c)z=c/x4y2) (d)none here c is a constant ...

two particles x n y of equal mass an unequal positive charge are free to move and are initially far away .With y at rest x begins to move towards it with inital velocity u .after long time (A)x ll stop n y ll move with veloci ...

Toluene is treated with Cl-CH-CH2-COCl l CH3 in the presence of anhydrous AlCl3 The product formed is Here friedel craft acylation will dominate or acetylation ...

4 charges are placed each on a distance a frm origin. -2q at +x axis 3q at +y axis -2q at -x axis +q at -y axis dipole moment of configuration is ?? ...

This is my humble request to all TargetIITians, especially those who have the habit of posting smileys in large numbers: WHEN SMILEYS ARE TOO MUCH, IT IS TAKING TOO MUCH TIME TO LOAD AND IN 99.99% OF THE CASES, THE BROWSER HA ...

∫1-sinx dx/x(1-x3e3cosx) ...