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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............ ...
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*Image* bLOCK a OF MASS M is released from rest.No friction anywhere..It undergoes 2 completely inelastic collisions.,first with the plane and then with a block of B mass 2m. and sticks to it.A total of 21J mechanical energy ...
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1. *Image* the co-effnt of friction us=0.6,uk=0.4 btwn 12kg block and 3kg rod.Find the magnitude of the acceleration of the 12kg block immediately after the wire ab is cut (both the angles=30deg.) a.5 b.8 c.2.5 d.N.O.D 2. *Im ...
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\lim_{0}(tanx/x)^{1/x^{2}} (x is tending to 0) ...
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Can som1 forward me the schedule of B.MAT test series..........my id.....rahulnair.2007@rediffmail.com ...
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A channel 27m wide falls at a right angle to another channel 64m wide.the greatest length of a log that can be floated along the system of channel is,...... a.100m b.110m c.120m d.125m ...
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Let f(x+y)=f(x).f(y) for all real values of x & y.f(5)=2, \frac{\partial (0)}{\partial x} =3. then \frac{\partial (5)}{\partial x} =? a.6 b.3 c.5 d.1 ...
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Let f(x) = 2007^{x}/(2007^{x}+\sqrt{2007}) then the sum f(1/2007) +f(2/2007)+.............................f(2006/2007)=? a.1004 b.1003 c.1003.5 d.1004.5 ...
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A particle moves in a horizontal circle with vel. v at the end of an inextensible string.If it collides elastically with a straight wall when the string makes an angle 'x' greater than pi/4 with the wall, then its velocity wh ...
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while solving an inequality, i got the interval of x as [-6,6] but there was another option as [-1,1] and the question was of one or more correct ans. type.should I mark both these options? ...
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*Image* two particles from A & B start traveling simultaneously towards each other ,both of them with speed u.find their separation after time t=R/u. 2.What will be their initial velocities when both particles have rotated th ...
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lim x-infinity 1/n(tanpi/4n +tan2pi/4n+..........tan npi/4n) equals... is it '2pilog2'? ...
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the value of \int_{-5}^{10}{f(x)dx} if f(x)=e^{2secx}ln(1+sinx/1-sinx) if -5\leq x\leq 5 5≤x≤5 f(x)=1 otherwise ...
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On what factors does the strengths of electrophiles & nucleophiles depend on??? ...
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Do we need to learn the bond lengths of various compounds for JEE? ...
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\int dx/sinx+cosx ...
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*Image* A convex lens of focal length 10cm is placed on a mirror.An object is placed at a distance 8cm.wat is the nature of the image? is it Virtual,inverted? ...
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Six letters are selected from the word RESOLUTION. the probability that S is included is? a.91/150 b.93/155 c.91/154 d.93/154 i m not getting any of these options?????? ...
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1.the no. of total terms in the expansion of (3x-2y)^{7}[1/x+1/y]^{8} ...
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\sum_{r=0}^{n-1}{}\sum_{j=1}^{n-r}{} (n-j)Cr=? a.1 b. 2^{n} c. 2^{n}-1 d. 2^{n-1} ...
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*Image* which is the most acidic hydrogen? is it the 3rd one? is the 1st & the 3rd hydrogen equally acidic ...
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1.Which of the foll. is least soluble in dil.HCl? a.aniline b.NN-dimethyl aniline c.Triphenyl amine d.diethyl amine ...
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1.the rate of esreification of amino acids is max. at a.pH=7 b.pH=8 c.pH=12.5 d.ph=2 ...
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*Image* the size of the loop is reduced by pulling at the wire shown with constant velocity v.B is the magnetic field.At the given instant,the induce emf accross the loop is???????? a.Bvr (r is the radius at the given instant ...
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which is the most basic?? a.Triphenyl amine b.Diisopropyl amine c. *Image* ...
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1. *Image* when the switch is closed, the number of times th current through the circuit is 0 in a second? a.5000/pi b.2500/pi c.its never 0 d.it is always 0 2. *Image* What is the P.D across PQ at the instant the switch is c ...
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1. *Image* B=1T.slider PQ movs at constant speed of 1m/s.the current through the 1 ohm resistor is......a.1A b.0.5A c.1.5A d.2A 2. *Image* dB/dt=1T/s.the wire btwn P&Q are flexible and of length 11/7m.find the current flowing ...
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If A= \begin{bmatrix} x-2 &2 &x \\ 1&2 &3 \\ x-4&-2 & -x \end{bmatrix} and (I+A)^{4} =I + 4A,then (I-A)^{2} =? a.0 b. \begin{bmatrix} -1 &-4 &-6 \\ -1 & -3 &-6 \\ 2& 4 & 7 \end{bmatrix} c. \begin{bmatrix} 0 & 2 &-3 \\ -1& -1 ...
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.what is a chelate?is [Fe(SCN)]3- a chelate?in how many isomeric forms can [Fe(SCN)]3- exist? ...
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*Image* find the potential difference accross AB a.1V b.2V c.1.5V d.cant be determined ...
