| Author Profile : |
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 | Author : | Dr. Mahesh Dutta Singh and Bhawana Singh
| | Current Position : | | Head, Dept. Of Physics, Pranav Chatterjee College, Buxar (Bihar). | | Education : | | - | | Short Profile : | | Dr. Mahesh Dutta Singh is working as Head of the Dept. Of Physics in Pranav Chatterjee College, Buxar (Bihar). |
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