KIBU2020-06-192020-06-192016-05-10http://erepository.kibu.ac.ke/handle/123456789/2144SPH 215: Modern physicsenAttribution-NonCommercial-ShareAlike 3.0 United Stateshttp://creativecommons.org/licenses/by-nc-sa/3.0/us/SPH 215: Modern physicsSPH 215Modern physicsOther