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This Thread is to find the strength of left Vs right (handers)..................... For a Right hander replying in this thread..........=+2 For a Left hander replying in this thread..........=-2 Who first reaches 200 they win ...

the circular boundary of concave mirror subtends a cone of half angle θ at its centre of curvature .The minimum value of θ for which ray incident on this mirror parallel to the principal axis suffers reflection more than on ...

2 friends would come and stay for 15 minutes.. between 5 to 6 PM. what is the probability that they will meet?????? ...

can u plz help me out on this one.. A point source of light is placed at a certain depth below the surface of a large deep lake.show that the fraction of light energy that escapes directly from water is given by 1/2 -1/2n n^2 ...

i wanted a list of good books that are to be followed for physics,chemistry,maths...which will have all the possible explanation of a particular chapter.... ...

A point is selected at random inisde a circle.Find probablity that it is farther from centre than to its circumference ...

three points are chosen from the interval [0,1].FÄ°nd the probability of choosing these points such that the longest distance betweeen two points is <= 1/2 ...

draw the graph of x3+y3 = xy ...

A town has several clubs. Given any two residents there is exactly one club that both belong to. Given any two clubs, there is exactly one resident who belongs to both. Each club has at least 3 members. At least one club has ...

There are 2 players in this game. The first player starts, and only positive integers can be written down on a piece of paper. If the numbers a,b have been written on the piece of paper any number written after those two cann ...

state and prove legrange`s mean value thorem? ...

*Image* prepare the above compound starting from acetophenone ...

what should be antiproton which is anti particle of proton? ...

Find the value of \int_{0}^{infinity}{x^{2n+1}.e^{-x^2}dx} ...

Why cannot we use the ampere's circuital law while finding the magnetic field of a wire of finite length? Though we can very easily use it when the wire is of infinite length. ...

A spaceship is sent to investigate a planet of mass M and radius R. While hanging motionless in space at a distance of 5R from the centre of the planet, the spaceship fires an instrument package with a speed V at an angle the ...

A machine gun of mass M/4 is mounted on a plank of mass 3M/4. The barrel of the gun is inclined at an angle of θ with the horizontal. The plank is moving on a smooth horizontal surface in x-y plane of a coordinate system alo ...

let a,b,c,d be real nubers each greater than 1. prove that 8(abcd+1) > (a+1)(b+1)(c+1)(d+1) ...

Q1 Let the roots of f(x)=x be α and β where f(x) is a quadratic polynomial. It is true that α,β also satisfies f(f(x))=x. Let the other roots of the eqn. f(f(x))=x be γ and δ. Now Correct statements are: a) If α β are ...

if f(x) =0 for all x,is f periodic? ...

On the request of grandmaster.....writing some inequalities here which are no way necessary for JEE but can just reduce ur work The Cauchy-Schwarz Inequality (x1² + x2² + x3²)(y1² + y2² + y3²) ≥ (x1y1 + x2y2 + x3y3)² ...

when the object is at distance u1 & u2 the images formed by d same lens are real n virtual resp and of same size .d focal length of the lens (a)1/2√u1+u2 (b)1/2(u1+u2) (c)√u1u2 (d)2(u1+u2) ...

*Image* a converging lens of focal length 20 cm n diameter 5cm is cut along the line AB.the part of the lens shown shaded in the diagram is now used to form an image of a pt Pplaced 30 cm away frm it on d line XYwhich is prep ...

y=f(x) is a curve defined as x = 1-3t2 y = t-3t3 h(x) = |f(x)| + f(x) g(x) = |f(x)| - f(x) then a∫b h(x) dx is equal to (A) a∫b g(x) dx (B) b∫a g(x) dx (C) b∫a g(x) dx only if a,b →[0,1] (D) None of these ...

This question was asked in today's physics boards: "Draw three equipotential surfaces corresponding to a field that uniformly increases in magnitude but remains constant along z - direction. How are these surfaces different f ...

STAT 1: A highly intense red light is going from one transparent medium to another, on coming into second medium the light colour remains red in colour but the intensity will decrease. STAT 2: Colour of light depends upon fre ...

The number of possible continuous f(x) defined in [0, 1] for which I1 = \int_{0}^{1}{f(x)dx}= 1, I2=\int_{0}^{1}{x.f(x)dx}=a I3=\int_{0}^{1}{x^{2}.f(x)dx}=a^{2} is ? ...

Which of the following statement is correct when a mixture of NaCl + K2Cr2O7 is gently warmed with Conc. H2SO4? a) A deep red vapour is evolved b) The vapour when passed in to NaOH solution gives a yellow solution of Na2CrO4 ...

A cylindrical vessel is filled with equal amounts by weight of water and mercury.The overall height of the two layers is 29.2. Determine the pressure of the liquid at the bottom ? density of hg= 13.6.... i found out the heigh ...

There was this question in the book—Effect of pressure on boiling pt. of a liquid. The book gave its reasons and concludes that increase in pressure increases boiling pt. Sir I quite understood their explanation but then I ...