Physics Mcqs Physics Mcqs for the preparation of NTS, PPSC, SPSC, BPSC, KPSC, FPSC, OTS and other academic entry test and jobs tests. 1. The working principle of a washing machine is(a) Centrifugation(b) Dialysis(c) Reverse osmosis(d) Diffusion 2. Reserves of radioactive element which has been found in D.G. […]