A CERTAIN RADIOACTIVE SOURCE EMITS RADIATIONS THAT WERE FOUND TO BE DEFLECTED BY BOTH MAGNETIC AND ELECTRIC FIELDS. THE RADIATIONS ARE

• A. beta rays ✓
• B. gamma rays
• C. x-rays
• D. ultraviolet rays

The radiations that are deflected by both magnetic and electric fields are beta rays. Beta rays are high-energy, high-speed electrons or positrons emitted by certain types of radioactive nuclei during the process of beta decay.

Beta decay is a type of radioactive decay in which a nucleus transforms into a different nucleus with the emission of a beta particle. Beta particles can be negatively charged electrons or positively charged positrons. When beta particles pass through a magnetic field, they are deflected due to their charge, and when they pass through an electric field, they are also deflected due to their charge.

Beta rays are distinct from gamma rays, X-rays, and ultraviolet rays because they consist of charged particles (electrons or positrons) rather than electromagnetic radiation like photons. Gamma rays are high-energy photons that do not have an electric charge and therefore do not interact significantly with electric or magnetic fields. X-rays and ultraviolet rays are also forms of electromagnetic radiation that do not consist of charged particles.

In summary, the radiations deflected by both magnetic and electric fields are beta rays, which are high-energy electrons or positrons emitted during beta decay.