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CBSE Questions

Total Questions 9982
how the novels became popular ?
Explain the different methods of rain-water harvesting which is carried out in India.
What is "NARMADA BACHAO ANDOLAN" ?
Describe how modern adaptations of traditional rain-water harvesting methods are being carried out to conserve and store water.
Explain how rain-water harvesting is carried out in semi-arid regions of Rajastan.
What are the advantages and disadvantages of multi-purpose river projects ?
What is water scarcity and what are it's main causes ?
Explain how water becomes a renewable resource.
why don't our eyes also grow as any other part?
who invented credit cards?
what is the difference between civics and politics
who is the present chief justice of kerala?
could u please explain about antimatter?
what is the need of a resistor in a circuit and how does it control current flowing through a circuit?
where is bile produced in our body and why is it not an enzyme?
Q4.Using Gauss theorem,show mathematically that,for any point outside the shell,the electric field due to an uniformly charged thin spherical shell is the same as if the entire charge of the shell is concentrated at its center.Why do you expect the electric field inside the shell to be zero according to this theorem??
Q3.An electric dipole is held in uniform electric field I.Using suitable diagram show that,it doesn't undergo translatory motion and derive an expression for the torque acting on it and specify its direction.
Q2.Three point charges of +2 micro coulomb,-3 micro coulomb and -3 micro coulomb are kept at the vertices A,B & C respectively of an equilateral triangle of side 20 cm.What should be the sign and magnitude of the charge to be placed at the midpoint ,m of side BC ,so that the charge at A remains at equilibrium.
Q1.Using Gauss law establish that the magnitude of electric field intensity at a point due to an infinite plane,with uniform charge density (omega) is independent of the distance of the field point. (plz answer this query as soon as possible...plz)
which bird has the longest wings