In an electric field, which type of radiation is attracted to the negative plate?

In an electric field, beta radiation is composed of high-energy, high-speed electrons or positrons. These particles carry a negative charge when they are electrons, which makes them attracted to the positive plate of an electric field and repelled by the negative plate.

In contrast, gamma radiation is a form of electromagnetic radiation and does not have mass or charge, hence it does not respond to electric fields. Alpha radiation consists of positively charged particles (helium nuclei), which would be attracted to the negative plate rather than repelled. X-rays, like gamma rays, are also electromagnetic radiation and are unaffected by electric fields due to their lack of charge.

Thus, in the presence of an electric field, beta radiation is the type that responds to the fields, being attracted to the positive plate.