1. Physics Department, Faculty of Science Taibah University Al‐Madina al Munawarah Saudi Arabia
2. Physics Department, Faculty of Science Taibah University Yanbu Saudi Arabia
3. Physics Department, Faculty of Science Alexandria University Alexandria Egypt
4. Physics Department, Facult'e des Sciences Universit'e Moulay Ismail Meknes Morocco
5. Physics Department, Faculty of Science Ain Shams University Cairo Egypt