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f(x) = log7 log 5 log3 log2 (2x3 + 5x2 - 14x) ...

when 60.26g of VCl4 was added to 1000g of solvent,freezing point of solvent was depressed by 5.415°.Kf=29.9.calculate the no. of dimers,V2Cl8 . ...

1.A 20N block is suspended by a spring balance.A beaker containing some water is placed on a weighing machine which reads 40N.The the spring balance is lowered inside the water such that the block is fully immersed.The spring ...

a satellite is in a circular orbit very close to the surface of a planet. at some point it is given an impulse along its direction of motion, causing the vel to increase by μ times. it now moves in an elliptical orbit with t ...

EK AUR!!! *Image* TRY Q C) I DONT HAV DA ANS............. *Image* ...

(A) : When a body is connected to earth,all its charge flows to earth and it becomes electrically neutral. (R) : Electric potential of earth is zero,so the body connected to earth should also attain zero potential. ...

SHOW THAT IF n≥6 is composite, then n divides (n-1)! . ...

a balll of density ρ0 falls from rest from a point P onto the surface of a liquid of density ρ in time T. It enters the liquid, stops, moves up n returns to P in a total time 3T. Neglect the viscosity, surface tension and s ...

plot a curve depicting the temperature dependence of the rate R of a simple one step reaction. ...

1.Two strings A and B ,of same material and Ra=2Rb,are stretched by the same tension.Transverse waves travel thru these strings,find the ratio of their velocities va/vb 2.HC Verma in his book mentions velocities of 2 interfer ...

how to solve a 4 by 4 determinant? co-factrs methd ??? ne better methd ...

tollens reduce aromatic aldehyde dut fehlings do not why ...

A Large spherical shell(radius r, charge q) rotating with angular velocity is placed in gravity-free space, having uniform magnetic field, suc that its direction is perpendicular to the axis of rotation. If the mass of shell ...

A Li7 target is bombarded with a proton beam current of 10-4A for 1 hour to produce Be7 with an activity of 1.8 *108 disintegrations per second . assuming that one Be radioactive nucleus is produced by 1000 protons bobarding ...

1.A body is suspended from a spring balance kept in a satellite,when orbit radius =R,reading = W1,when orbit = 2R,reading = W2 then A)W1=W2 B)W1W2 ans:(a) 2.Suppose a tunnel is dug thru the centre of the earth , and a particl ...

*Image* A wire of length l has current i apply amperes law ∫B.dx=μi B.2pir=μi B=μi/2πr ...(:P same as of infinite wire.) But we know it should be B=μi(sinα+sinβ)/4πr Explain what is wrong.. [3] ...

First term = 1 ,common diff = 4,which of the following represents the general term of the AP A) k^2(k+1)^2 + 3 B) k^2(k-1)^2 - 3 C) k^2(k+1)^2 + 2 D) k^2(k-1)^2 + 5 ...

The angular velocity of the wheels of a scooter is directly proportional to the petrol input.The scooter is moving on a frictionless road with uniform velocity. If the input is increased by 50%,what is the change in linear ve ...

incresin hydration of ions a Ba+2 b Sr+2 c Ca+2 d Be+2 e Mg+2 ? n y ? ...

1. If integers m and n are chosen at random between 1 and 100, then the probability that a number of the form 7m+7n is divisible by 5 is, a.1/4 b.1/7 c.1/8 d.1/49 2. A six faced fair dice is thrown until 1 comes, then probabi ...

Paragraph for Question Nos. 41 to 43 The distance between the objective and the eyepiece in a microscope set in a horizontal direction is 12 cm and their respective focal lengths 0.6 cm and 5 cm. If a clear image is to be obt ...

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Q.1 ON HEATING CH3-CO-COOH , P is formed , but Q is formed on heating CH3-CO-CH2-COOH. PAND Q ARE>> *Image* Q 2 *Image* Q 3 *Image* Q.4 *Image* Q5. *Image* PLEASE EXPLAIN STEPS AND MECHANISM ANSWERS ARE 1. C 2.BENZO-QUI ...

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*Image* Block A is almost massless.and velocity is given to (mass=1kg) v= 8gH Find acceleration of A at initial instant. ...

*Image* the battery of volatge V=10 V .. three capacitors each of 3μF and 5 resistors each of 1Ω are aranged as shown in the fig. arrangement is left for long time so that steady state is reached. then: 1) charge on cap 1 2 ...

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The oxidant(s) whose oxidizing power is affected with the change in pH is/are ? A] I2 B] Cr2O4- C] MnO4- D] NO3- ...