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Q : The potential in a region varies as V = 4x2. Find the charge (in C) enclosed by a cube of side 1 m having its center at Origin. ...
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Explain the Process and what should be the correct answer and why? *Image* ...
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*Image* The I-V characteristics of a metal wire at two temperatures is shown, then a) T1>T2 b) T2>T1 c) T1=T2 d) The relation may vary ...
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Q In complex [Fe(H2O)5(NO)]2+ , NO molecule is present as : Attempt: The answer given is NO+, But I think here NO is neutral. Q An equimolar mixture of toulene and chlorobenzene is treated with a mixture of Conc. Nitric acid ...
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The number of quadratic equations, which are unchanged by squaring their roots is ? ...
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The number of quadratic equations, which are unchanged by squaring their roots is ? ...
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Well ,the title is obvious. Any thing to share. Personally, I feel that this year's paper was DIFFICULT than the Previous years one. The questions which were doable were lenghtly (not all I mean) and some were really outsmart ...
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*Image* For second, Options B,D are same. And those contain the answer I think For Third, Someone verify. I think it should be C ...
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Which of these does not associates with a black body : a) It absorbs radiation b) It emits radiation c) It refracts radiation d) It reflects radiation. I don't remember the question correctly. So Excuse for the language. ...
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1. A block A of mass m is placed over a plank B of mass 2m. The friction between them is .5 while the ground surface is smooth. The upper block A is imparted a velocity V towards right. The acceleration of B relative to A wil ...
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*Image* Give all products : A - I Src: A boy calling himself a 'chemistry lover' via facebook. ...
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1. \text{If} \; \sum_{x=\pi-^{10}C_7}^{x= \pi + ^{10}C_r} \; \sin(x^o) = 0 , then value of r is ? 2. Side lengths of the triangle are 3 consecutive integers, and one of the angles in twice that of other, then no. of such tria ...
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1. *Image* 2. Let Points P,Q correspond to the complex numbers a,b in the complex plane. If |a| = 4 and 4a2-2ab+b2 = 0 , then the area of the triangle OPQ, (O = Origin) is : ...
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Suppose p(x) is a polynomial and that p(x) - p'(x) = x^2 + 2x +1. Compute p(5). ...
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Give the waveform of an AC Wave which has form factor less than 1 ? ...
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1. The no. of tangents to the curve y = cos(x+y) , |x| ≤ 2Π, that are parallel to the line x+2y=0 is ? 2. If 2008θ=Π, and 2 .\sum_{r=1}^{r=n} \sin(r\theta)\cos(r^2\theta) is an INTEGER , then find the least integral n ? ...
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Intensity and exact wavelength of the lines in the spectrum of an element depends upon ? a) temperature b) Pressure c) Pressure of Electric Field,magnetic field and motion of source d) None e) All ...
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1.. *Image* 2.. *Image* ...
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With IIT JEE nearing, I would like to ask everyone how are they approaching these. How are they consolidating their preparations and enything useful to share. It might be helpful for me. ...
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f:\bf{R}\to\bf{R} \;\;, f(x) is a function satisfying f(x)+f(x^2)=2 \;\; \forall x \in \bf{R} , then f(x) is : a) into b) many one c) constant d) periodic Morethan one! ...
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\int_{0}^{2\pi} e^{\cos x} \cos({\sin x}) \; \mathrm{d}x ...
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If sin(a+b)sin(a-b)=sin c (2sin b+sin c) , 0 <a,b,c < Pi, then the family of lines xsin a+y sin b+ sin c = 0, passes through the fixed point? ...
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Eva.uate : \int_{-2n}^{2n+\frac 12}{\sin(\pi x)\left\{\frac x2 \right\}} \;\; \mathrm{d}x ...
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The rate of Solvolysis of alkyl halide in 50% aq. ethanol is maximum for *Image* ...
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If the reaction of a mixture of NaCN and benzyl bromide were run in twice the volume of the solvent, the rate of reaction would nearly be : a) same b) twice as fast c) 1/2 as fast d) can't say as the nature of reaction is unk ...
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