If the frequency of an emitted x-ray is 1.6 x 10\(^{16}\)Hz, the accelerating potential is?
[e = 1.6 x 10\(^{19}\)C, h = 6.63 x 10\(^{-34}\)Js]
A certain radioactive source emits radiations that were found to be deflected by both magnetic and electric fields. The radiations are
