About the Authors

Nada F. Tawfiq

Department of Physics, College of Science, AL-Nahrain University, Iraq

Noora O. Rasheed

Department of Physics, College of Education Pure Science, University of Tikrit, Iraq

Asmaa Ahmad Aziz

Department of Physics, College of Education Pure Science, University of Tikrit, Iraq

Corresponding Author

Email: laith_najam@yahoo.com