| Author Profile : |
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 | Author : | Ranjan Prasad and S.N. Singh
| | Current Position : | | Research scholar, Dept. Of Physics, B.N.Mandal University, Madhepura. | | Education : | | - | | Short Profile : | | Ranjan Prasad is a Research scholar at Dept. Of Physics in B.N.Mandal University, Madhepura. |
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