Radiation from a radioactive source travels through a gap between two metal plates and is bent as shown in the diagram. A magnetic field acts between the plates and points into the plane of the paper, as shown by the crosses. There is only one type of radiation present. Which situation could happen?
- AThe source emits alpha particles and there is an upwards electric field between the plates.
- BThe source emits alpha particles and there is no electric field between the plates.
- CThe source emits beta particles and there is an upwards electric field between the plates.
- DThe source emits gamma radiation and there is a downwards electric field between the plates.