This is Dr. Aamarpali Roy
(Phd.Chemistry)Gives guidance for Post Doctoral/Doctoral Thesis.
Master project work. Candidates from reputed universities (India and Abroad) can enroll.
Online and offline tuitions {All Boards (English Medium)}
For Class VIII-X:- Science (Physics/chemistry/biology/maths)
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Contact:+91-9051345485
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Friday, June 14, 2013
Annihilation meaning
The phenomenon in which a particle and an antiparticle, such as an electron and a positron, meet and are converted completely to energy approximately equivalent to the sum of their masses.
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