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two planes 1 and 2 hit a plane in succession . the probability of 1 and2 scoring hit correctly is 0.3 and 0.2 respectively. The second plane will bomb only if 1misses it. probability the target is hited by 2nd one ans-0.32 ...

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Each one tell your marks in the final test, seperately in both paper ...

pls give me a detaild explanation abt sign convention for the pbm. 1)Two equiconvex lenses of focal lengths 30 cm and 70 cm,made of material of refractive index=1.5; are held in contact coaxially by a rubber band round their ...

cofumation wanted......... In case of a cubic cell havin atoms in CCP latticve, at EDGE-CENTRES at FACE CENTERE and at BODY - CENTER relation b/w r of atom and edge length is : ?? is it 4r = a ?? and wats the ratio of radius ...

let Z be a complex no. wil Z2 =/Z/2 (mod Z ) ...

A block of mass 1kg is pushd against a rough vertical wall with a force 20N coefficient of static friction being 1/4;Another horizontal force of 10 N is applid on the block in a direction parallel to the wall.Will th block mo ...

a wire of lenght 20m is bent so as to form a circular sector of maximum area. find the radius of the circular sector and the maximum area ...

What are the rules for unique, infinte solutins in matrices and determinants ...

In the given figure , a smooth parabolic wire lies in the vertical (x-y plane) .The shape of the given track is defined by the equation y=x2/a(a is a constant ) .A ring of mass of which can slide freely on the wire track,is p ...

1 mole of a gas xpands with temperature T such dat its volume V=kT2 where k is a constant if d temperature of d gas changs by 60° den find d work done by d gas ? a gas has molar heat capacity C=37.35Jmol^-1 K^-1 in d process ...

what happens if you heat allyl phenyl ether. ( 2-propenoxy) benzene. ...

a hollow sphere[inner radius r and outer radius R] and sphere of radius R are heated to same temperature ,which will cool faster and why ? ...

2.0 g of phosphorus and 2.0 g of oxtgen are allowed to react leaving no residue of either of the reactants. Calculate the amount of P4O6 & P4O10 FORMED DURING THE COURSE OF REACTIONS. (Ans. 1.996 g P4O6 & 2.002 g P4O10) ...

Both leads of an LED conductivity probe are dipped in water,dried and then dipped in mercury. in which liquid the LED light up. 1) water 2) Hg 3) Both 4) None ...

An aluminium sphere is dipped into water at 100C.If the temperature is increased ,the force of buoyancy 1)will increase 2)will decrease 3)will remain constant 4)may increase or decrease depending on the radius of the sphere. ...

AN IDEAL MONOATOMIC GAS AT NTP IS ENCLOSED IN AN ADIABATIC VERTICAL CYLINDER BETWEEN TWO LIGHT MOVABLE PISTONS (ONE UP AND ONE DOWN). SPRING WITH FORCE CONSTANT K IS CONNECTED TO THE UPPER PISTON AND IS IN A RELAXED STATE INI ...

1.A metre scale made of steel reads accurately at 20degrees C. In a sensitive experiment distances accurate upto 0.055mm in 1m are required. Find the range of temp in which the experiment can be performed with this metre scal ...

*Image* 1. a ball is allowed to fall from a height of 10 metre. if there is 40% loss of energy due to impact then after one impact ball will go upto a, 10 b. 8 c.6 d. 4 2. a particle is projected with kinetic energy k. its ra ...

*Image* Which of the following is the correct order of rate of solvolysis of the above ? (A) I < II << III (B) I >> II > III (C) I ≈ III > II (D) I ≈ III <II ...

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if the rate constant for a reaction represented by 2HI===>H2 +I2 is denoted by K then for same reaction if represented by HI===>1/2 H2 +1/2 I2,the rate constant will be____________. ...

identify least stable ion amongst following: a)Li- b)Be- c)B- d)C- ans given is b but my answer is a becoz Bond order=0 from MOT for a) why is my ans wrong????? ...

why do protons exist in the nucleus of any atom even if they experience repulsive forces from each other?? ...

It is given that : If 'n' things are arranged in a row, no. of ways in which they can be deranged so that none of them occupies their original place is n!\left\{1-\frac{1}{1!}+\frac{1}{2!}-\frac{1}{3!}+...+\frac{(-1)^{n}}{n!} ...

calculate the magnetic induction at a point 1 Angstrom away from a proton , measured along its axis of spin. magnetic moment of proton is 1.4 x 10^ -26 A-m^2 ...

part test 1 doubt............. Q2) A Function can be written as the sum of even and odd function a) Only if Function is continuous b) If the function is continuous and Differentiable c) If the function has a symmetric domain ...

find no of inegral solutions of [x][y] = x + y ................ and find the lines on which the non integral soln lie ............. ...