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What is the number of non-congruent Rectangles in a chess board? ...
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Draw curves for the following titrations....... 1)Strong acid-Strong base 2)Strong acid -Weak base 3)Weak acid -Strong base ...
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Suppose a ball of mass m moving with a speed v strikes a horizontal rod of mass M and length L placed on a smooth floor at an end. The coefficient of restitution is 0.5. Find the angular velocity of the rod, the linear veloci ...
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THIS IS THE THREAD IN WHICH I AM POSTING ALL THOSE MATHS QUESTIONS OF WHICH I COULD NOT GET A CONVINCING SOLUTION BY MYSELF OR OTHERS AND I REQUEST ALL TARGETIITIANS TO HELP ME OUT SOME PROBLEMS MIGHT BE TOUGH SOME MIGHT BE V ...
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Step by Step guide to charge your mobile battery using peepal leaf 1- Open your mobile cover 2- Take out your battery 3- Take two to three fresh leaves of peepal/pipal/ashwattha tree 4- Touch the stub of these leaves on your ...
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On an island there are 5 pirates {A,B,C,D,E} who are equally greedy and equally logical. They have 1000 coins and they have to distribute it among themselves. First A gives his plan for distribution. If his plan is accepted b ...
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IIT-JEE CHEMISTRY Q.1 Reactions of aluminium with 1. O2 2. N2 3. Cl2 4. Cr2O3 5. Mn3O4 6. HCl 7. H2SO4(Dil.) 8. H2SO4 (Conc.) 9. HNO3 10. NaOH 11. AlCl3 Q.2 Reactions of Al(OH)3 with 1. Acid 2. NaOH 3. Heating Below 450ºC 4. ...
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hi!!!!! everyone.............. pls post ur suggestions , tips...... anything & everything which is helpful to ur juniors. I hope every one will contribute ........ & help others not to repeat the same mistake which they commi ...
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ARRE......... MUJHE TO QUESTION HI SAMAJH NAHI AAYA [2] *Image* ...
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Heloooo I am absolutely depressed and devastated ........that was the main reason I wasnt online for so many days....... I am getting around 260 marks in JEE.......which is way below my expectations of 340-350.... .that means ...
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which of following os not ah example of pseudo unimoleculer reactions a)ch3cooc2h5+h2o gives (in presence of h+) ch3cooh+c2h5oh b)same reaction in presence of oh- c)c12h22011+h2o giving c6h12o6 in presence of h+ d)ch3cocl+h2o ...
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1.plz explain, what is the electric flux through each surface in a cube when a point charge is kept at one corner of the cube. mag of charge is q. 2. *Image* each capacitor has capacitance C , find energy drawn from source An ...
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Q 1) Prove that f(x)=\frac{x^7}{7}-\frac{x^6}{6}+\frac{x^5}{5}-\frac{x^4}{4}+\frac{x^3}{3}-\frac{x^2}{2}+x-1 has exactly one real root Q 2) In 1 hour a snail travels 60 meters. Prove that there was an Interval of 10 minutes w ...
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Found it intresting ..so posting here... not at all my doubt... idnitfy A and B *Image* ...
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hi everyone ! i was of the opinion that we can handle inorganic chemistry for coming year's JEE in a different way ! all of us have observed the questions in the recent 5 years JEE papers ! so, what we can do is collect bits ...
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From a variable point P on y=x-3 tangents PQ& PR are drawn to the circle x2+y2 = 4 , Q' & R' r the corresponding points of Q & R on the ellipse x2/4+y2=1 in the same quadrants as Q & R The locus of the midpoint of Q' R' is an ...
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1. When XeF2 and AsF3 react and form adduct,the hybridisation of Xe and As in adduct are respectively ________,_______ ?? 2. When DEVARDA's alooy is treated with nitrates in the presence of alkali the gas evolved is (a) NO (b ...
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plzzzzzzzzzzzzz can anyone give the download link for j d lee!!!!!! ...
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A(z1), B(z2), C(z3), D(z4), E(z5) are the vertices of a regular polygon ABCDE in anti clockwise order whose centre is at the origin O and M(z) is point inside the polygon. 1) If |arg(z4-z5/z-z5)| = |arg(z-z3/z4-z3)| = θ then ...
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Two coherent point sources of light having wavelength λ are seperated by a distance d. A circle is drawn in space surrounding both the point sources as shown. The plane of circle contains both the point sources. The distance ...
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If point P(1,2,1) lies on the plane 2X-Y+Z=1 considering point Q(0,0,0) ; line segment PQ is rotated in anticlockwise direction with an angle Î /6 (consider the rotation in the plane containing line PQ and perpendicular to gi ...
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no. of distinct real roots of f"(x) if f(x)=(x-1)25(x-2)43(x-3)11 ...
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A plateau is in the shape of a trapezium with the upper surface horizontal and the side surfaces at 60° & 30° to the horizontal.A man walks up the steeper slope at 6 m/s then along the upper surface and then down the inclin ...
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NEWLY ADDED QUESTIONS unsolved questions are underlined. 1.for what value of k the system of linear equations x+2y+x=1;x+3y+4z=k;x+5y+10z=k2 has solution?find the solution in each case. [roorkee 97] SOLVED 2.true/false(plz gi ...
