1. Department of Physics, Govt Post Graduate College, Karak, Khyber Pakhtunkhwa, Pakistan
2. Department of Physics, Kohat University of Science and Technology, Kohat 26000, Pakistan
3. Department of Physics, University of Lakki Marwat, Lakki Marwat 28420, Khyber Pakhtunkhwa, Pakistan
4. Department of Mathematics Education, University of Education Winnebakumasi-(kumasicompus), Kumasi 00233, Ghana