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When can w download iit hall tickets?? ...

Q1.Find the dimensions of the rectangle of greatest area that can be inscribed in a semi-circle of radius 10 2 Q2.(1+y2)dx=(tan-1 y-x)dy Q3.find the locus of z if Amp z-1/z+1 = pi/4 PLZ TELL ME THE ANS . ...

Question 1 The rate of nitration of the following aromatic compounds decreases in the order: *Image* I *Image* II *Image* III *Image* IV Question 2 True/False Type Ph_{3}\dot{C} radicle has more number of hyperconjugation str ...

i have a gross unending doubt with basics in electrode potential!! can i have a big lecture from someone on electrode potential from the exact starting in order to clear my basics as well as doubts!! ...

On an average out of 12 games of chess played by A and B, A wins 6, B wins 4 and 2 games end in a tie. A and B play a tournament of 3 games. Calculate the probability that A and B win alternate game, no game is tied up. ...

roots of the equation x4+4x3-8x2+k=0 when 1. k = [0,3],are a) all real. b) two real two complex. c) no real. d) none. 2. k = (3,4],are a) all real. b) two real two complex. c) no real. d) coincident. 3. k = (-inf,0),are a) al ...

An ellipse has OB as semi minor axis , F,F' are its foci, and the angle FBF' is a right angle.Then eccentricity of the ellipse is ....... pls explain ...

*Image* please solve only the angular acceleration bit! ...

1.....why will the pH increase if NaOH is added to 10 litres of solution of water????????[2][2][2][2][2][2][2][2][2] edited ...

Suppose n (≥3) persons are sitting in a row. Two of them are selected at random. The probability that they're not together is a) 1-(2/n) b) 2/(n-1) c) 1-(1/n) d) 2/(n+1) ...

which is most unstable a)CH3COCOOH b)CH3COCH2COOH c)CH3COCH2CH2COOH d)CH3COCH2CH2CH2COOH ...

*Image* A rod and a block are of same mass. Initially rod is in horizontal position. What will be acceleration of tip of the rod when system is released from the position. Elaborate your answer. ...

Q1When OH groups strongly attached with SiO2 derivatives a)Acidic strength inc b)acidic strength remains same c)basic strength inc d)cataytic activity inc Q2Due to availabltiy of lewis acid and bronsted in sites of natural ma ...

Question 1 If \vec{a} , \vec{b} , \vec{c} be such that | \vec{a} + \vec{b} + \vec{c} |=1, \vec{c} = \lambda \vec{a} x \vec{b} and |a|= 1/ 2 , |b|= 1/ 3 , |c|= 1/ 6 then the angle between \vec{a} and \vec{b} is: A) Î /6 B) Î / ...

Arrange in Order of Bpt BiH3 NH3 SbH3 HF NH3 H2O ...

\int \frac{a^{x/2}}{\sqrt{a^{-x}-a^{x}}}dx ans...........> (1/log a)sin-1(ax) + c ...

1.does elimination reaction of cycloalkyl hallide exclusively gives cis isomer ???? (found in arihant[51][51]) ...

1)SO2Cl2 Paramagnetic 2)K2HgI4+NaOH Refrigeration 3)Flourocarbons Testing NH3 4)NO H-bondidng ...

1.. *Image* give reasons ...

Magnetic dip at a pt is 60°.if the dip circle is rotated through an angle of 90° about its vertical axis,what is the new angle of dip observed? ...

\lim_{n\rightarrow \infty }\sum_{r=1}^{2n}{\frac{r}{n\sqrt{n^{2}+r^{2}}}} ans...........> 5 - 1 ...

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*Image* *Image* please explain the step marked in violet... how???? [2] [2] ...

The sum of solutions of the equation sinx = x2 - 7x + 12 is k which can be expressed as the product of two prime numbers. The sum of primes is equal to -----. INTEGER ANS TYPE ...

*Image* Ques 1) Find out the net downward thrust on the curved surface of a bucket full of water of height h and radii a and b. Ques 2) A small uniform tube is bent into a circle of radius r whose plane is vertical. Equal vol ...

Q:-find the maximum and minimum values of F(x)=sinx+1/2cosx in 0<=x<=∩/2 ...

Today Amy celebrates her birthday. Two days later her twin brother Matthew celebrates his birthday. How can this be so? Hint: Today doesn't specifically mean the current day! ...

*Image* ans - 1 . π/4 - 1/2 log 2 far practize ...

A diverging lens is placed at origin of coordinate sysytem.eqn of incident ray is y=-x/2+3. The focal length of lens is 4 cm. find eqn of divergent ray... please help....anyone.. *Image* ...

*Image* **edit** in first step only 1 eq grignard is used **** ...