Recently Active Questions

In the figure, there is a square of side 'l'. Ends C and D are pulled with velocity u. Find the induced emf at the instance when angle ABD is θ. Magnetic field is into the plane of paper. *Image* ...

http://jee.iitd.ac.in/pcard.htm ...

in chemical adsorption unimolecular layer is formed .........but according to langmuir assumption adsorptions starts only when one molecular layer is there ...then chemical adsorption won't take place.......... please explain ...

An open box with a square base is to be made out of a given cardboard of area c2 sq. units. Show that the max vol. of the box is c3/(6 3 ) cubic units. ...

http://www.jee.iitm.ac.in/cutoff2009.htm lot of useful info in this site ...

Q In=0√3∫ 1/1+xn dx Find limit In n->∞ ...

Is a cyclic compound having a triple bond more stable than a cyclic compound having a double bond? Why? ...

why is H2O neutral but HF acidic in nature ?(i mean you analyse the huge difference in properties !!!) ...

Two 10g bars of metal of atomic weight A1 and A2 are heated to 60°C and then immersed in identical insulated containers each containing 200g of water at 20°C.Which metal will cause a greater temperature rise in water? Given ...

Show that the right triangle of max area that can be inscribed in a circle is isosceles. ...

a capacitor of capacitance C is given a charge Q. at T=0 it is connected to a ideal battery of emf E through a resistance R. find the charge on the capacitor after time t ...

For those of you who have done Euclid's algorithm you could try: Prove that gcd (2a-1, 2b-1) = 2gcd(a,b)-1 [Isnt the result beautiful?!] ...

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Consider two identical spheres,one of which lies on a thermally insulating plate and the other hangs on an insulating thread.Equal amounts of heat is given to the 2 spheres. Which will have a higher temp. ?? ...

Q1. find the limit lim(x→0) (1+x)1/x-e+(ex/2)/x2 Q2. Let the rth term tr of a series be given by tr = r/1+r2+r4 . Then find the value of lim(n→∞) Σtr (n=1 to n=n) Q3. If x is a real number in [0,1]. Then the value of l ...

what is the stereo. of the double bonds in benzene : cis or trans ?(good question for beginners) ...

editted the topic: new topic:plot the graph of, sin(1/x), cos(1/x) ...

solve the following : (1) find the period of |sin3 x/2| + |cos5 x/2| (2)if f:R->R and g:R->R be two one one and onto functions such that they are the mirror images of each other about the line y=a and h(x) = f(x) + g(x) ...

consider a Ca-atom to be spherical,find the radius and density of 40Ca ...

find all linear functions from [-2,4] to [10,15] which are onto??? ...

can two ethylene molecules participate in a diels alder reaction ?? think from every possible point of view and then answer !!!!! ...

can you think why capacitors with water as dielectric medium is very rare for practical usage although water has the highest dielectric constant ? ...

Here is the collection of all problems... http://pertselv.tripod.com/RusMath.html Enjoy.......[6] ...

Establish the current distribuition over 2 resisitances R1 & R2 connected in parallel corresponds to the minimum thermal power generated in the circuit ...

Ques1) Although the internal resistances of all sources of emf were neglected in the treatment of the potentiometer, it is really not necessary to make this assumption? Explain why internal resistances play no role in the mea ...

g(x) = ∫ cos4t dt , then g(x+π ) = ? { lower limit =0 upper limit= x} a. g(x) + g(π) b. g(x) - g(π) c.g(x) *g(π) d. g(x)/g(π) ...

integrate log(sin 2x) dx lower limit=0 upper limit=pi/2 ...

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How do we derive ∫f(x) g(x) dx = f(x) G(x) - ∫ f'(x)G(x)dx G(x) represents integral of g(x) wrt x and f'(x) represents differential of f(x) wrt x ...

\int \frac{dx}{(1+\sqrt{x})\sqrt{x-x^{2}}} is equal to ? please give a proper method along with your answer. ...