People working in nuclear plants wear special monitoring devices to track their exposure to radiation. radioactive materials used in plants emit particles but they also emit high energy waves that are potentially lethal to human life. these waves are waves

It could also be gamma rays i don't really know

Gamma rays

Explanation:

Gamma rays are usually defined as a type of electromagnetic radiations, that are characterized by the presence of shorter wavelength and higher energy. These are the common radiations that are released from the radioactive substances, where an unstable nucleus of an atom releases an excess amount of energy by undergoing continuous electromagnetic processes.

These are harmful to humans and other organisms, as they are comprised of very high energy and they can easily penetrate through the bodies of humans and other organisms.

These gamma particles are emitted in the power plants, where the people working in it wear a special type of device that helps them in monitoring the exposure to radiation.

pe = weightxheight = 2000x1000=2,000,000joules

e/c, where e is its total energy