_ are very high-energy electromagnetic radiations of the extremely short wavelength emitted from the nuclei of radioactive atoms originating from the high energy transitions of the nucleons in the nuclei.
Correct answer: C. Gamma rays
- A. Alpha rays
- B. Beta rays
- C. Gamma rays
- D. Electromagnetic rays
- E. Ultraviolet rays
Explanation
Gamma rays are very high-energy electromagnetic radiations of extremely short wavelength emitted from the nuclei of radioactive atoms. They originate from the high-energy transitions of the nucleons (protons and neutrons) in the nuclei during radioactive decay.Gamma rays are a type of ionizing radiation, meaning they have enough energy to remove tightly bound electrons from atoms, creating ions. They are more penetrating than alpha and beta particles, and they can travel long distances in air and other materials.In various fields such as medicine, industry, and research, gamma rays are used for applications like cancer treatment (radiotherapy), sterilization of medical equipment, and non-destructive testing of materials. However, due to their high energy, they can also pose health risks when exposure is not properly controlled.
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Atomic nuclei contain protons and neutrons, with nuclear size, mass defect and binding energy describing their stability. The work covers alpha, beta and gamma decay, decay equations, half-life and decay rate, along with radiation safety and medical applications such as imaging, radiotherapy and tracers.
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