About the Authors

Khalil Ibrahim Mohammed

Department of Physics, College of Science, Kirkuk University Kirkuk, Iraq

Awatif Sabir Jasim

Department of Physics, College of Science, Tikrit University, Tikri, Iraq

Sahar Naji Rashid

Department of Physics, College of Science, Tikrit University, Tikri, Iraq

Corresponding Author

Email: khalil69math@yahoo.com