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edited cos problem was wrong . maafi chahta hoon for posting crap . thanks ...

If ‘head’ means one and ‘tail’ means two , then coefficient of quadratic equation ax2 + bx + c = 0 are chosen by tossing three fair coins. Then find the probability that roots of the equations are imaginary. jaldi pos ...

Let f be twice diff function satisfying f(1)=1,f(2)=4,f(3)=9 then: a)f"(x)=2 b)f'(x)=2 c)there exists at least one x E (1,3) such that f ' (x)=2 ...

QUE 16 *Image* ...

Here i will be posting ques on probability which could prove to be useful 4 every1 Do try to give explanations if u can options will be given on demand[1] Q1 If the papers of 4 students can be checked by any one of 7 teachers ...

If a,b,c and u,v,w are 2complex nos. represeting teh vertices of 2 triangles such that c=(1-r)a+rb and w=(1-r)u+rv where r is a complex no. then what is relation between 2 triangles. ...

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** QUESTN 6 ORGANIC ** *Image* HOW TO DIFFER B/W A and B ?? ...

a short linear object of length b lies along axis of a concave mirror of focal length f at a distance u from the pole of mirror.The size of image is aprox. equal to??? ...

VERY EASY I KNOW, i jus wanted 2 know the conditn on FORCE 4 unstabl equi. *Image* ...

*Image* ANS = b ...

An inductor having self inductance L wit hcoil resistance R is connected across battery of emf E. Circuit is in steady state at t=0.At that instant a rod is inserted in inductor due to which inductance becomes nL where n>1 ...

A plane miror is moving with velocity 4i+5j+8k.A point object in front of mirror moves with velocity 3i+4j+5k.Here k is along normal to plane mirror and facing towards object.Then velocity of image is ???? Ans: 3i+4j+11k ...

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3m+3n = 5r r ε N ......... find no. of ways of choosin m,n ε[1,100] ...

If the time taken by a aparticle sliding down a smooth inclined plane is twice of that it would take if it would have fallen down through the vertical height of the inclined plane.What is the inclination of the plane?? ...

is there any case where inductive effect predominates over resonance ...

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lake cayuga has a volume of water estimated to be 8.2 X 1012 L.a power station not so far above cayuga waters produces electricity at the rate of 1.5 X 106 coulomb/sec at an appropiate voltage ...how long would it take to ele ...

A charge +Q is fixed at the origin. Far away from it an electric dipole of dipole moment P pointing away from the origin is released from rest. The length of the dipole is negligible. Find i) the kintetic energy of the dipole ...

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FIND da area bound by the curves : y = x2 + 2 & y = 2|x| - cos(Î x) OPTIONS : 2/3 4/3 8/3 1/3 ...

q8 *Image* ANS = 10 kaise?? ...

find the atoms having same no of s and p electrons means no of electrons in s orbital=no of electrons in p orbital ...

hey guys did any of u receive your AIEEE HALL TICKETS? IF SO, HOW MANY DID U GET? I AM ASKING THIS BECAUSE I GOT 2 HALL TICKETS IN 2 SEPERATE ENVELOPES! ...

what is steric effect? ...

The minimum energy required to launch a m kg satellite from earth;s surface in a circular orbit at an altitude 2R where R is the radius of earth ...

1-3 dibromopropane ---->(Zn + Δ) A ------> (HBr) B ------> (alc. KOH) C ----------> (Br2) D ---------> (alc. KOH/NaNH2) E identify A,B,C,D,E ...

a cylinder of heoght h made of a material of density ρ and young`s modulus Y is placed on a horizontal surface. compression in the cylinder due to its own weight is ? ...