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Author Names : Sangam Kumar* & Ashish Kumar *P. G. Department of Physics, L. S. College, B. R. A. Bihar University, Muzaffarpur- 842001, Bihar, India.

Author Names : Ali A. Lafta1,2 Samer A. R. Al-Taei2 Noori H. N. Al-Hashimi1 1Department of Physics, College of Education for Pure Science, University of Basra, Basra, Iraq. 2Department of Marine Physics, Marine Science Center, University of Basra, Basra, Iraq.