Toppers' Discussion Forum

Discussion Board Class Subject  

Fri April 29, 2016

Acids

What is antacid  

CBSE X Chemistry

Fri April 29, 2016

Trigonometric functions

How does 2(1+cos)+2sin(1+cos)/2cos(cos+1) gets converted into (1+cos)(2+2sin)/2cos(1+sin)? Iknow it might seem silly to u but i cannot get it done. 

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CBSE XI Mathematics

Fri April 29, 2016

Diffusion of gases

What is diffusion of gases?give some example in daily life  

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CBSE IX Chemistry

Fri April 29, 2016

lines and Angles

if 2 lines intersect each other at a point then one pair of vertically opposite angles are acute angles and other pair of verticaaly opposite angles are obtuse angles why ?

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CBSE VII Mathematics

Fri April 29, 2016

happy prince

What happen with prince

CBSE IX Reference Notes

Fri April 29, 2016

muhaware

meaning of all hindi muhaware

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CBSE X Chapter Notes

Thu April 28, 2016

Newton's laws of motion.

Consider an airplane taking off. You can feel yourself being pushed back into your seat, so you are experiencing a force (that is not gravity). However, you remain at rest w.r.t. the coordinate system fixed to the airplane. So the first law of Newton seems to fail: we are at rest, so there is no acceleration and yet a force is exerted on us. When the airplane is traveling at a constant speed on a constant height, however, we feel no force (except for gravity) and the first law seems OK again. HOW IS THIS POSSIBLE???

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CBSE X Chapter Notes

Thu April 28, 2016

biology

what is arota  

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CBSE X Chapter Notes

Thu April 28, 2016

Solid state

what's the type of lattice in diamond unit cell?

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CBSE XII Chapter Notes

Thu April 28, 2016

shabdh vichar

What is "kala", tatsam or tadbhav

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CBSE VII Chapter Notes

Thu April 28, 2016

properties of determinants

how should we solve properties of determinants

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CBSE XII Chapter Notes

Thu April 28, 2016

Magnetic moment

how can magnetic moment be found out if we are given a complex compound like [CoCl6]*4- ?

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CBSE XI Chapter Notes

Thu April 28, 2016

Quantum no.

The maximum number of electrons which can be associated when n = 3, l = 1 and m = −1 is 2.  What is the formula used here? 

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CBSE XI Chapter Notes

Thu April 28, 2016

Huckles rule

How do you check for Huckle's rule? in benzyle free radical and other aromatic compounds too?

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AIPMT AIPMT Exams

Thu April 28, 2016

Motion in a straight line.

Why we count time for whole journey while computing average velocity for whole journey not just time required for same? Also why trigonometric identities not used in parralax method?

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CBSE XI Exams

Thu April 28, 2016

Trigonometry

Why is -cosx = +cosx?  

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CBSE XI Exams

Thu April 28, 2016

doubt in miscellaneous exercise in chapter 2 Qno. 10

sir,for (1-sinx) we may also take [(cos^2(x/2)+sin^2(x/2) -2sinx/2 X cosx/2]                                                                          HENCE (cosx/2-sinx/2)^2                                                                     and can we further continue  

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CBSE XII Exams

Thu April 28, 2016

maths

please give me basic idea of sets relation and function

CBSE XII Exams

Thu April 28, 2016

where are the solution of supplementary part of NCERT

sqaure root of -5+12i

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CBSE XI Exams
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