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apply first law of thermodynamics to a resistor carrying a current i identify which of the quantities dQ , dU , dW are zero which are positive and which are negative ...
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Prove the criteria for divisibility by 9. ...
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Link sent to me by my friend Pratyush Tiwary. Credit: http://www.math.umn.edu/~vishal/funstuff/HowToBeMoreImpressive.jpg *Image* ...
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To be fair, this question is not relevant to the Syllabus of IIT JEE. It is definitely in the syllabus but it shows how things can go wrong! I will try to show that there are 3 different probabilities attached to finding the ...
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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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this thread is only for integration sums............ AND YA FORGOT TO TELL ALL TARGETIT USERS, I HAVE COPIED ALL THESE SUMS. SO KISIKO GAALI DENA HAIN YA KUCH KEHNA HAIN, PLEASE VISIT http://targetiit.com/profile711.html AND ...
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*Image* A weightless rod with a length `l` is rigidly attached to a weightless pulley with radius `r`. The end of the rod carries a mass `m` .A string to whose free end a mass `M` is fastened is passed over the pulley . in wh ...
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Suppose you find a motionless rope reaching vertically up in the sky (without anybody holding the other end) and hanging down nearly to the ground. What would be the length of the rope? ...
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N identical balls lie equally spaced in a semicircle on a frictionless horizontal table, as shown. The total mass of these balls is M. Another ball of mass m approaches the semicircle from the left, with the proper initial co ...
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Consider two solid spheres A and B made up of a linear and homogeneous dielectric, each having a radius a . Their centers are separated by a distance r\gg a . The sphere A carry a charge +q while B is neutral. Now if all the ...
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A homogeneous rod AB of length L=1.8m and mass M is pivoted at the center o such that it can rotate freely in the vertical plane . The rod is initially in the horizontal position. A insect S of the same mass M falls verticall ...
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find all odd prime numbers p which divide 1p-1+2p-1+3p-1+.....................2004p-1 ...
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Figure shows a comfortable electrostatic configuration, consisting of four conductors with charges ±Q situated so that the plusses are near the minuses. *Image* What happens if we join them via conducting wires as shown. Wil ...
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Point-masses of mass m are at rest at the corners of a regular n-gon, as illustrated in the figure for n = 6. *Image* How does the system move if only gravitation acts between the bodies? How much time elapses before the bodi ...
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You have won yourself a Travel Voucher (2 Night 3 Day vacation in Goa!) and accelerate IIT, accelerate AIEEE, accelerate BITSAT and accelerate WBJEE products as prizes for All India Testing Carnival! The holiday voucher is be ...
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*Image* ...
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Why cant a capacitor work in DC ?? ...
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HELLO GUYS!!! i would like to start this thread where everyone is free to contribute sensible topics and their analysis that is truly relevant for JEE 2010 .. i mean to say the things that we generally overlook, or areas wher ...
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http://www.jee.iitm.ac.in/cutoff2009.htm lot of useful info in this site ...
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Evaluate the following limit: \lim_{x\to+\infty}\left(\sqrt[n]{(x+2)(x+4)\cdots(x+2n)}-\sqrt[2n]{(x+1)(x+2)\cdots(x+2n)}\right) where n is a positive integer. ...
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*Image* A block M with smooth fixed pulleys B and D is on a smooth horizontal surface. A block m is placed on the smooth inclined face of M is connected to one end of an extensible string passing over the pulleysB and D and t ...
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Q1. What is the difference between non-aromatic and antiaromatic? .. wud u call cyclooctratetraene as non-aromatic or anti-aromatic? Q2. Why is pyrene aromatic even though it violates Huckel's rule? *Image* Q3. Show the dipol ...
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http://timesofindia.indiatimes.com/news/india/Class-XII-marks-may-play-key-role-in-IIT-entry/articleshow/4930705.cms CHENNAI: Marks scored in the Plus Two board examinations are likely to become a key determining factor in ad ...
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A cylinder can move without friction along a straight wire parallel to its axis of symmetry, as shown. *Image* Tiny particles moving horizontally at speed v_0 bombard the body from both left and right. Collisions with the rig ...
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Evaluate the integral: \int_0^1\dfrac{x-1}{\ln x}\ \mathrm dx ...
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I asked this same question about 7 months back..Didnt get a reply Asking again..... In case of 2,4-dinitoalkylbenxene ,if NH4HS or Na2S is used as reducing agent,nitro group at para position is reduced ,while if SnCl2/HCl is ...
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In how many ways can you color a cube with a) one color b) two colors c) three colors d) 4 colors e) 5 colors f) 6 colors Each of them is easy ... just needs a bit of thinking :) ...
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If p,q,r,s are probablities of raining at 4 diff places at some fixed moment.then find max and min value of 3(p^2+q^2+r^2+s^2)-2(p+q+r+s)+4 ...
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It all started with b555's classic integration siikho thread..and now nishant sir started some more threads on it.... I ma starting one small on inequalities..A lot of inequlaities thread are already there on site..I know tha ...
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*Image* bLOCK a OF MASS M is released from rest.No friction anywhere..It undergoes 2 completely inelastic collisions.,first with the plane and then with a block of B mass 2m. and sticks to it.A total of 21J mechanical energy ...
