Physics 9702 · AS & A Level · Atoms, nuclei and radiation

Atoms, nuclei and radiation — practice question

Radiation produced by a radioactive source travels only a few millimetres in air and is deflected by an electric field. What type of radiation is being emitted?

A$\alpha$-radiation
B$\beta^-$ radiation
C$\beta^+$ radiation
D$\gamma$-rays

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