Magnetic memory filmed in slow motion by Scientists

The scientists at DESY (Deutsches Elektronen-Synchrotron) used high-speed photography to film one of the candidates for the magnetic data storage devices of the future in action. The film was taken using an X-ray microscope and shows magnetic vortices being formed in ultrafast memory cells.



Their work, which has been reported by the scientists surrounding Dr. Philipp Wessels of the University of Hamburg in the journal Physical Review B, provides a better understanding of the dynamics of magnetic storage materials. Magnetic memory cells are found in every computer hard drive.

Read more at http://phys.org/news/2014-11-scientists-magnetic-memory-super-slow-motion.html

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Supplementary Material on Additional Sub-Topics included in Class XII Physics Theory Syllabus

http://cbseacademic.in/web_material/doc/2014/15_XII_Physics_Supplimentary_material.pdf

PSA Sample Question Papers and Previous Years' Question Papers

PSA Sample Question Papers and Previous Years' Question Papers

PSA Sample Question Papers Published by CBSE  http://cbseacademic.in/web_material/PSA/1_PSA%20IX.PDF

Problem Solving Assessment Question Paper 2014

Class-IX : P1  -   Question Paper |   Answer Key

Class-IX : PF  -   Question Paper |   Answer Key

Class-XI : A1  -   Question Paper |   Answer Key

Class-XI : AF  -   Question Paper |   Answer Key

Problem Solving Assessment Question Paper 2013  :   Class-IX |   Class-XI
PSA Awnser Keys

CLASS-IX : Exam Held on 18-01-2014 Test Booklet Code - P1 and Exam Held on 19-10-2013 Test Booklet Code - W1

CLASS-XI : Exam Held on 18-01-2014 Test Booklet Code - A1 and Exam Held on 19-10-2013 Test Booklet Code - X1


Marking Scheme of PSA question paper for February 16, 2013 exam  :   Click Here