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Suppose you have done 6 litre-atm. work to raise some water by certain temperature. Specific heat capacity of water is 4.124 J g-1 K-1. Find out the work you have done (6 litr-atm.) in Joules. Plzzzzzzzzzz explain .... ...

S = { [x],sin-1x , l x l , {x} } A,B,C are subsets of S A ---> consists of odd functions B ----> consists of discontinuous functions C ----> consists of non decreasing/ increasing functions l (x) ε neither A nor B n ...

MATCHING (A)Let f : [-1,∞) ---> (0,∞) defined by f(x) = ex2+l x l , then f(x) is (B)Let f: (1,∞)---> [3,∞) defined by f(x) = 10 - 2x + x2 then f(x) is (C) Let f: R--->I defined by f(x) = tan5∩ [ x2 +2x+3 ] ...

this question may come (my intuition) as comprehension in jee 2010 *Image* ...

∫-∞∞ (sint/t) dt ...

2 coherent point light sources are placed at x=\pm \frac{d}{2} . These sources are surrounded by a spherical screen having eqn x^2+y^2+z^2=R^2 . Given R>>d, sources emit monochromatic light of wavelength \lambda=\frac{d ...

An ray of light is incident with grazing angle at (0,0) The refractive index of the medium (in grey) varies with x-coordinate as N=2x. What is the path of the light ray? *Image* ...

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if z1 z2 z3 r complex nos such that \left|z_{1} \right|=\left|z_{2} \right|=\left|z_{3} \right|=1 then find the max value of \left|z_{1}-z_{2} \right|^{2}+\left|z_{2}-z_{3} \right|^{2}+\left|z_{3}-z_{1} \right|^{2} ...

How can we superimpose two or more SHM"s? Explain with the help of a diagram? ...

An object is attached to a vertical spring and slowly lowered to its equilirium position.this streches the spring by an amount d.if d same object attachd 2 d same spring is permitted to fall instead,through wat distance does ...

please try to indentify the intermediate compuonds formed. It's one of b555's problems. conversion of benzaldehyde to 3-phenylpropanol. exp in brackets is the reagent used. benzaldehyde ----->(ethanol / OH- ) ------------- ...

Q1. Selected bond angles for five hydrocarbons are shown below. Arrange these hydrocarbons according to their pKa values, from lowest to the highest *Image* ans: 6>2>3>4>5>1 Q2. Rank the following in decreasing ...

help i hav some doubts in it....des r easy *Image* ...

1) if f(2x + y/8 ,2x - y/8 )=xy then f(x,y) +f(y,x)=??? 2)the function f(x)=λmod(sinx) + λ2mod(cosx) +g(λ) has a period equalt to pie/2 then find λ 3)evaluate the limit \lim_{x\rightarrow \infty }(\frac{x}{2}cos(\frac{\pi ...

If a and b are +ve integers.......find the probabilty that \frac{1}{2}(a^{2}+b^{2}) is a +ve integer ...

Hydrocarbons exist in aliphatic and alicyclic forms.For the cyclic forms,the Baeyer strain theory is applicable.However this theory can only partly explain the stability of these hydrocarbons.The strain occurs due to a variet ...

*Image* Merry Christmas to all - The Dark Knight ...

Read all these things today....tell me if they are in syllabus or not..since they are from the most untouched chapter:Amino acids 1)Preparation of amino acids from Ketonic acid 2)Preparation of amino acids by Strecker method ...

(1) The sum of X-coordinate of the point of Intersection of the curves x^{2}=x+y+4 and y^{2}=y-15x+36 in X-Y plane. ...

*Image* the charge q is being brought in from infinity dWfield = Fdr cos180 →dWext = Fdr du=dwext= Fdr r r ∫du=∫Fdr ∞ ∞ U =- kQq/r (Assuming potential energy at infinity to be 0) Here i am bringing in a positive cha ...

tanA,tanB,tanc are the roots of the eqn. x3-k2x2-px+2k+1=0,then triangle abc will be a triangle of what nature?explain the ans? ...

how many necklace can be using 8 stones 2- red 3-blue 3-black ...

The IUPAC name of the following compound is *Image* (A)4-Bromo-3-cyanophenol (B)2-Bromo-5-hydroxybenzonitrile (C)2-cyano-4-hydroxybromobenzene (D)6-bromo-3-hydroxybenzonitrile ...

How would you rate Arihant Objective Chemistry for Objective practise for JEE? and how many questions does it have for each topic(approx) ...

x=\sum_{n=3}^{100}{\frac{1}{n^2 -4 }} \\ \color{red}then \ find \ [x] my answer is coming out to be -3 ...

Q1. \lim_{n\rightarrow \infty }\sum_{k=0}^{n}{\frac{^nC_{k}}{n^k(k+3)}} Q2. If the roots of the equation ax2+bx+c=0, a>0 are positive and are p and q (p>q) then \lim_{x\rightarrow 1/p^+}\sqrt{\frac{1-cos[2(cx^2+bx+c)]}{ ...

Let f(x) =[ (2x3 - 9x2 + 12x + 3) (x- a) ] / (x-a) If range of f(x) is a proper subset of real no.s , then the most exhaustive set in which a lies is (A) (-∞,7) U (8,∞) (B) (-∞,7] U [8,∞) (C) (-∞,1/2] U [5/2,∞) (D ...

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A non conducting ring(mass m,radious r,having charge Q) is placed on a rough horizontal surface(in a cylindrical region with tranverse magnetic field ).The field is increasing with time at the rate R and the coefficient of fr ...