As radiation is passed through the electrical field (above), it is observed that this radiation does not change direction as it passes through. predict other properties that this radiation would have. a) it would have no mass, high penetrating power and travels at the speed of light. b) it would have a very light mass, medium penetrating power and travels very fast. c) it would have the mass of a helium nucleus, low penetrating power and travels slow. d) it would have a very light mass, high penetrating power and travels at the speed of light.