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A diode made by silicon has a barrier potential of 0.7 volts and current of 20mA passes through the diode when a battery of 3 volts and a resistance of R are in series to it, then the wattage of the resistor is ....... a)46 W ...

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Ques. Which of the following is incorrect for the reaction? *Image* 4th option C IS *Image* ...

Let AB be a fixed chord passing through the focus of a parabola. how many circles can be drawn which touch the parabola and AB at the focus ...

*Image* now look into the problem 1.no where written ISOLATED system 2.following ELECTRCI field configuration seems like lines are getting diverged after some distance on both side CONCLUSION::::::::::[considering the level J ...

Ques.) 2 moles of PCl5 are taken in a closed vessel. At equilibrium the vessel contains 2.5 moles. The degree of dissociation of PCl5 is 1. 0.25 2. 0.5 3. 0.4 4. 0.2 ...

let ABC be an acute angled triangle whose orthocentre at H. altitude from A is produced to meet circumcircle of the triangle ABC at D. then the distance HD is.....?? ...

Friends check this out: http://www.icbse.com/2010/mistakes-iitjee-2010/ I personally think that if ANY(that's right even one) wrong option is marked the student will get 0 in that question. [7][12] ...

Q1)Let g(x) be be function defined on{-1, 1].If the area of the equilateral triangle of two of vertices at(0,0) & (x,g(x)) is 3/4, then the function may be a)g(x)=± (1-x2) b)+ (1-x2) c)- (1-x2) Q2)find domain:f(x)= (sin x) - ...

The dual nature of radiations was proposed by ...

When C2H5OH and CH3COOH are mixed in equivalent, equilibrium is reached when 2/3 of acid and alcohol are used. How much easter will be present when 2 moles of acid were to react with 2 moles of alcohol? 1. 1.33 mole 2. 1 mole ...

1..IN WHICH OF THE FOLLOWING BONDS re not equal 1.SF4 2.SiF4 3.XeF4 4..BF4 GIVE EXPLANATION [2] ...

P is an external point of the circle S=0 , n number of transversals are drawn from P to meet the circle S=0 in n pairs of points say (A1B1)(A2B2)......(AnBn) and power of the point P with respect to the circle S=0 is k then t ...

in triangle ABC , the incentre is I(1,0). equations of the lines AI , BI, CI are given by x=1 , y+1=x , x+3y=1 respectivly. and cot(A/2)=2 1) eqn of locus of centroid of ΔABC is....... 2) slope of BC is........ 3) if pt.A li ...

*Image* [.] denotes the greatest integer function ...

(!) A locomotive engine approaches a railway station and whistles at a frequency of 400Hz . A stationary observer on the platform observes a change of 40 Hz as the engine passes across him . If the velocity of sound is 330m/s ...

(!) f(x) = Lt n-->∞ [ x/(1+(2sinx)2n) ] then f is discontinuous at (A) pi (B) pi/3 (C) pi/4 (D) pi/6 ...

Many of my friends including some here are aying that 30 % of the candidates appearing for this yr's JEE did not know abt the ors error - which is a disaster. I don't agree to this bcoz they would just go on marking according ...

*Image* plz tell how we got that second step?? ...

1)Find the number of solutions of the equation *Image* here [.] is greatest integer function 2) evaluate - \int_{0}^{1}{(1+e^{-x^2}})dx 3) \textup{if }I_n=\int_{0}^{1}e^x(x-1)^n \textup{dx} \textup{ and } I_p=24e-65 \\\textup ...

q1) Find the real value of the parameter ' t ' for which there is at least one complex number z = x +iy satisfying the condition | z + 3 | = t2 - 2t + 6 and the inequality |z - 3 3 i| < t2 q2) solve x3 - 3 - { x } = 0 wher ...

what were the official rank cutoff marks for aieee 2009...i.e rank wrt to score.. ...

*Image* i m getting answer as C///////////plz tell how cum B is right??? ...

A uniform rod of density ∂ is placed in a wide tank containing a liquid of density ∂o(∂o>∂). The depth of liquid in the tank is half the length of the rod. The rod is in equilibrium , with its lower end resting on ...

hey ppl..wht AIeee score fetches wht rank!!! plz givee sum info bt aieee marks...........wht was highest last time....at wht marks u can get sum good NITS..... ...

Two 20-g flatworms climb over a very thin wall, 10 cm high. one of the worms is20 cm long the other is wider and only 10 cm long. Which of them has done more work against gravity when half of it is over the top of the wall? W ...

the centres of two circles C1 and C2 each of unit radius are at a distance 6 units from each other. let P be the midpoint of the line segment joining the centres of C1 and C2 and C be a circle touching circles C1 and C2 exter ...

what cutoff u people expecting can it go below 160 as per the examination pattern , paper difficulty level ,increment of seats in IIT, mistake in heading in omr sheet. ...

which of the following behaves as (a) a nucleophile (b) an electrophile (c) both or (d) neither? Cl minus , NO plus , H2O , CH3Oh , CH4 , CH2O , CH3CN , CH3CH=CH2 , AlCl3 , BeCl2 , Cr plus3 , H2 and SnCl4... pls classify and ...

Q.1. If p,s>0 and q,r<0 then the roots of the equation (s+q)x^2 + (p+q)x +p-r = 0 are (here p>s , q>r) : (a)Imaginary (b)Real and equal (c)Real and distinct (d) Irrational ...