[latex]y=ax^{2}+bx+c[/latex]

The buzzing sound is caused by magnetostriction, the change in dimensions due to change in magnetic flux.

There are certain things which inhibit the creation of still heavier elements (on earth at least). As more and more nucleons are added to the nucleus, the size of the nucleus increases. As nuclear force is a short range force, the Coulomb repulsion force between the farther nucleons overpowers the nuclear force and this decreases the stability of the nucleus. So, elements of higher atomic weight (AND ATOMIC NO) are rare. The percentage of transuranic elements are very small.

CBSE has not officially published the routine, but we have already given the tentative schedule in our site http://plustwophysics.com/guessed-timetable-for-c...

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Earth and most of the other planets were formed from the same raw material, but the constituents of different planets differ. The differentiation process changed the constitution. In undifferentiated planets, the constituents will be almost the same as the initial ones.

Be Natural, Be Honest
Concentrate on What is asked, Understand the question, ask for clarification if required, answer politely justifying your thoughts

You will get Physics Question Papers here itself at plus two physics

DRESS WELL
Take care of What you wear. It must be comfortable to you and should look nice on you.
Expect the Best, Be Ready for the Worst
The interview board may ask anything, Be prepared not to loose your temper and answer all questions politely after applying your conscience and in full consciousness
Ready to answer these
Why do you want to do research?
Which subject do you like the most and why?

Useful Books, Magazines and website:
Manorama Year Book - Read the Science and Technology part
Read The Hindu's Science and Technology supplement regularly
Visit and update yourself with www.nature.com www.physicsworld.com etc