Periodicities observed on solar flux index (F10.7) during geomagnetic disturbances

Binod Adhikari, St. Xavier's College, Kathmandu, Nepal, Narayan Chapagain, Tribhuvan University, Department of Physics, Kathmandu, Nepal and Daya Nidhi Chhatkuli, Tri-Chandra Multiple Campus, Physics, Kathmandu, Nepal