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Q 17 solve kario!!! *Image* ...

*Image* ...

An ellipse given by x^2+4y^2=16 has a circle inscribed with centre at (1,0) ,what is the maximum possible radius? Ans: \sqrt{\frac{11}{3}} ...

A non conducting ring of radius r has charge Q. A magnetic field perpendicular to the plane of the ring changes at the rate of dB/dt. The torque experienced by the ring is? ...

The foot of the perpendicular on the line 5x+y=k drawn from the origin is M the line cuts the co-ordinate axes at A and B respectively then BM:MA is a)5:1 b)15:1 c)25:1 d)2:1 ...

A solution of a anon volatile solute in water freezes at -30 degree C. The vapour pressure ofthe pure water at 298K is 23.51 mm Hg and Kf for water is 1.86 K kg/mol. Calculate the vapour pressure o fthis solution at 298k ...

*Image* the conductor XY has negligible resistance. a) current will flow thru XY if ε1/R1 ≠ε2/R2 B) current will flow thru XY if ε1=ε2 C) current will never flow thru XY . d) current will always flow watever be the cond ...

the fuse wire has high or low resistance ...

WAT IS WALLI's FORMULA??? I guess it is some generalisation for \int_{0}^{\Pi /2}{sin^{2k}x\times \cos ^{2n}x}\, dx Can sum1 pl. tell me wat it is precisely.............. ...

*Image* ...

All chords of the curve 3x2-y2-2x+4y=0 which subtend a right angle at origin pass through a)(1,2) b)(1,-2) c)(2,1) d)(1,1) ...

Q 1 ) for a d electron, the orbital angular momentum i s A) 6 (h/2pi) B) 2 (h/2pi) C) (h/2pi) D) 2(h/2pi) Q2) The orbital angular momentum of an electron in 2s orbital is A)1/2 . h/ 2pi B) zero C) h/ 2pi D) 2 h/ 2pi Q3) The f ...

prove (\frac{1}{2})(\frac{3}{4})(\frac{5}{6})..........(\frac{999999}{1000000}) < \frac{1}{1000} ...

On what factors product in Oxymercuration demercuration depends... ? ...

A hydrocarbon A of the formula C7H12 on ozonolysis gives a compound B which undergoes condensation giving 1 acetylcyclopentene. Identify A dand B ...

A monomer of polmyer on ozonolysis gives two moles of CH2O and one mole of CH3COCHO. Write the structure of monomer and write all cis configuration of polymer chain. ...

a cubical block is floating inside a bath. The temp of the system is increased by a small temp T. It was found that the depth of the submerged portion did not change. find relation between coeff of linear expansion α of cube ...

The land of Hogwarts school of magic is different. The no. of girls and boys are equal . All the boys have two hands, while all the girls have only one {:)} . Dumbledore, the principal of the school arranged a party on new ye ...

a ball of mass 100 g is moving with 100 ms-1. 1 mark JEE 2004 :P ...

Q 1 ) number of radial nodes of 3s and 2p orbitals are respectively.. Q 2) Quantum numbers +1/2 and -1/2 for the electron spin represent A) Rotation of the electron in clockwise and anti clockwise directio nrespectively B) Ro ...

With what velocity should alpha particle travel towards the nucleus of a copper atom so as to arrive at a distance of 10-13 metre from the nucleus of the copper atom. ...

The Schorodinger wave equation for hydrogen atom is ψ \Psi_{2s}=\frac{1}{4\sqrt{2\pi}}\left(\frac{1}{a_0} \right)^{3/2}\left(2-\frac{r_0}{a_0} \right)e^{-r_0/a_0} where a0 is the Bohr's radius, if the radial node is 2s be ...

http://www.ted.com/index.php/talks/pattie_maes_demos_the_sixth_sense.html quite amazing if u hav some time do watch it ...

zlog(ex+iy)=????? where z≠0 & -π<arg(z)≤π ...

two long parallel wires are at a distance 2d apart. they carry steady current flowing out of the plane of the paper, as shown. the variation of magnetic field B along the line XX' is given by *Image* *Image* which one do u th ...

an elliptical cavity is carved within a perfect conductor A positive charge q is placed at the centre of cavity The points A and B are on the cavity surface (a nearer to q) then a)electric field near A in the cavity =electric ...

two conducting spheres of radius r and 2r at very large separation . Each sphere is having charge Q These spheres are connected with a conducting wire of resistance R Then the current flowing in the wire at t=2 micro sec. is ...

if the source of e.m.f. and the ammeter were physically interchanged in a network the ammeter will show the same current here in the solution they have applied principal of Reciprocity of e.m.f. Please explain it ...

What is the time period of a simple pendulum of infinite length ? pls show in details and explanation . ...

are we supposed to do the topic of earth's magnetism and magnetic material ................ as it is not mentioned in IIT syllabus ...