1. Department of Physics, College of Natural and Computational Science, Dambi Dollo University, Dembi Dolo, Ethiopia
2. Centre for Excellence-Indigenous Knowlegde, Innovative Technology Transfer and Enterpreneurship, Dambi Dollo University, Dembi Dolo, Ethiopia
3. Department of Mathematics, College of Natural and Computational Science, Dambi Dollo University, Dembi Dolo, Ethiopia
4. Department of Mechanical Engineering, ULTRA College of Engineering and Technology, Madurai 625 107, Tamil Nadu, India
5. Department of Mechanical Engineering, College of Engineering, Dambi Dollo University, Dembi Dolo, Ethiopia