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*Image* A block of mass M/2 is kept over another block of mass M and the heavier block is kept over smooth horizontal surface.The heavier block is long enough such that the smaller block does not fall during subsequent motion ...

*Image* As the cavities are vacuum,so there will be no gravitational forces bet. them,and as d gas expands,they will simply move apart from each other? ...

When there are itchy, red, raised, scaly patches that may blister and ooze and look like a ring, what is the disease called and among bacteria, virus and fungi what is the causative agent? ...

Blood group A has antigen A and antibody anti B. Blood group O has no antigen. If blood group A is given to a person having blood group O, antibodies (anti A) develop in the person and hence, clumping occurs. But, if O is giv ...

AB- blood can be donated to a person with a. A+ blood group b. AB+ blood group c. O- blood group d. B- blood group ...

∫ dx/sec2x + tan2x ...

It is given that a1=1 and an=n(an-1+1). Define a sequence pn as pn=(1+ 1/a1 )(1+ 1/a2 )...(1+ 1/an ). Find lim(n→∞)pn. ...

Form the differential equation corresponding to y2-2ay+x2=a2 ...

if f(xy)=f(x)f(y) for all x and y and f(x)is continuous at x=1 ,prove that f(x)is continuous at all non zero x. ...

1. According to Euclid, a line is bounded by _________________ a. Points b. Surfaces c. Both d. None of these ...

1)If B, C be two points lying on the line joining A and D, between A and D, then a. AB = BD b. BC = CD c. AC = CD d. AC = AB how? ...

What number would logically come next in this sequence? 4 6 5 9 4 4 2 4 ? ...

Sir, please answer this with reason- A conducting ring of radius 1m is placed in a uniform magnetic field of 0.01T oscillating with frequency 100 Hz with its plane at right angles to B. What will be the induced electric field ...

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2 circular coils A and B with different number of turns are placed at some separation (say d) apart in the same plane. They carry currents I1 and I2 respectively which are maintained. The coefficient of mutual induction for t ...

If image distance is 20 cm and object distance is 40 cm ,then how much is the radius of the curvature? ...

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√3-√4/√3+√4-√7 ...

Can anyone please show the derivation of F = qvBSin(theta)? Please use graphs to explain,and clearly state what is being done in each step to derive the final equation. ...

*Image* A line of charge L=10^-6C/m is fixed on the rim of a wheel of radius R=1m,which is then suspended horizontally,so that it is free to rotate(the spokes are made of wood).In the central region up to radius a=1/2m,there ...

Which of the following is smaller: atom or molecule? ...

to get pure aluminium we use the process "electrolysis refining" or hoope's electrolysis....can some1 plain it to me...its quite confusing.... ...

What is the core difference between "brazing" and "soldering"..??? They are almost the same processes... ...

4 persons r selected at random out of 3 men , 2 women, and 4 children. The probability that there r exactly 2 children in the selection is..??? ...

150 workers were engaged to finish a piece of work in a certain no. of days. four workers dropped the second day, 4 more workers dropped the third day and so on.....it takes 8 more days to finish the work now.. find the no. o ...

which thing does diamond and graphite burn to give? →carbon or carbon-dioxide. ...

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“I have three sons,” Tony told his friend, Peter. “How old are they?” Peter asked. “I will make this a math problem for you to figure out,” Tony said. “Go ahead,” Peter responded. “The product of their ages ...