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*Image* hey people could u predict y this error happend ...

At isoelectric point : a) Colloidal particles becomes uncharged 2)colloidal sol becomes highly stable 3)Peptisation can be carried out 4)None of these ...

Can kinetic energy of a system be increased without applying any external force on the system ?? ...

A book is lifted from the floor and is kept in an almirah.One person says that the potential energy of the book is increased by 20J & the other says it is increased by 30 J . Is one of them necessarily wrong ? ...

a boat moves wid speed 5km/h wrt water in starigh river flwoin wid a speed 3km/h n havin width 1km : hw long will d boat take to make a round trip across d river ...

*Image* Consider the situation shown in the figure.Both the pulleys and the string are light and all the surfaces are smooth. (a)Find the accn of 1kg block. (b)Find the tension in the string. ...

Is work energy theorem valid in noninertial frames ?? ...

Pls state with reason whether work done is pos,neg. or 0 in each case. 2 teams r playing tug-of war.. a. work done by the winning team on the losing team. b. work done by both losing team on the winnig team c. work done by th ...

how many unit cells are present in a cube shaped ideal crystral of NaCl of mass 1g ...

*Image* (B = b (-)decay,a= alpha decay) A and D are related as: a) Isotopes b) same nuclei c) isoelectronic d) isomers I have confusin between a) & c) ...

Hey does anyone have any quick links for some material in experimental physics? ...

Prove that any finite set of closed squares with total area 3 can be arranged to cover the unit square. ...

*Image* I GOT ANSWER AS 3 PLS POINT OUT THE MISTAKE IN MY SOLUTION: mA(9)=mBvB (Since collision is elastic) Thus, vB=9/2 ms-1 Collision between B and C is inelastic so 2mvB=3mvcommon So vcommon=3 ms-1 But ans given is 4 ms-1 ...

sveral numbers are written in a row. in each move, john choses any 2 adjacent numbers in which one on the left is greater than one on the right, doubles each of them and switches around. prove that roberts cn make only a fini ...

paper-1 question O2 has to matched with p)paramagnetic q)undergoes oxidation r)undergoes reduction s) bond order greater or equal to 2 t) mixing of s & p orbital i matched with all but i saw in brilliant sol. it has not match ...

let f be continuous for any x>1 and [] denoting the greatest integer function prove that \int_{1}^{x}(+1)f(u)du =2\sum_{i=1}^{[x]}{i\int_{i}^{x}{f(u)du}} ...

well many of you must be knowing about ICR - instantaneous centre of rotation . but i here give an example of a very common situation in rotational mechanics .Interpret it carefully . prolem 1 (starter) Consider a purely roll ...

a particle havin +ve chrge is releasd frm rest in eltric field and moves under d influence of both d eltric field n gravity .wich of d follwon qunatites conncted wid d chrged particle continously increases wid tym Eltric pote ...

A working transistor with its three legs marked P, Q and R is tested using a multimeter. No conduction is found between P and Q. By connecting the common (negative) terminal of the multimeter to R and the other (positive) ter ...

if x and y are positive integers such that the last digit of x2+xy+y2 is 0 , then prove that last 2 digits of x2+xy+y2 are 0 ...

If Youngs double slit experiment uses monochromatic source,then shape of interference fringes on screen is straight line,whereas if Youngs double hole experiment is used,the sahape is hyperbola.WHY?? ...

only for those who have some spare time..... find the polynomials f(x),g(x),h(x) if they exist mod(f(x))-mod(g(x))+h(x)={ -1 if x<-1 } { 3x+2 if -1≤x≤0 } { -2x+2 if x>0 } ...

A BALL STRIKES A WALL(ASSUME PERFECTLY ELASTIC COLLISION).THE BALL BOUNCES BACK WITH SAME VELOCITY(SAY V). SO,WE SEE THAT KINETIC ENERGY REMAINS CONSERVED BUT THE MOMENTUM OF BALL CHANGES BY 2mV. HOW CAN WE HAVE THAT MOMENTUM ...

Statement – I: Energy is released when heavy nuclei undergo fission or light nuclei undergo fusion. and Statement – II For heavy nuclei, binding energy per nucleon increases with increasing Z while for light nuclei it dec ...

Temperature of a body comes down to 40°C from 50°C in 5 min...in how much time temperature will come down to 30°C...temp of surroundings 20°C.. widout calculator ...

25. How many real solutions does the equation x7 + 14x5 + 16x3 + 30x – 560 = 0 have? (1) 7 (2) 1 (3) 3 (4) 5 ...

please all jee aspirants of 2009 regarding the students who r on ithe border line between getting a rank or not in jee please everyone suggest a minimum cutoff for a rank and ascertain that it will be helpful to everyone ...

{y}2+{x}2=1.5 ...

if f(x) =1 + ax (a≠0) is the inverse of itself then what is the value of a? ...

this thread is made to provide children with the best ebooks and their download links IF U NEED A BOOK JUST ASK!!!!!!!!![1] ...