No, silverware (such as forks) will not become radioactive after being microwaved, even if they have metal handles. Microwaving metal objects, including silverware, can be potentially dangerous and should generally be avoided.
When metal objects are placed in a microwave, the microwaves can cause electrical currents to flow through the metal, resulting in the production of sparks. These sparks can cause damage to the microwave, create a fire hazard, and pose a risk of injury.
Regarding radioactivity, microwaving metal does not cause it to become radioactive. Radioactivity is related to the instability of atomic nuclei and the emission of ionizing radiation, which is not affected by microwaving. The radioactivity of a material is determined by its atomic structure and composition, not by exposure to microwave energy.
To ensure safety, it is advisable to use microwave-safe utensils made of materials like glass, ceramic, or microwave-safe plastics for heating or cooking food in the microwave. These materials are designed to withstand the heat generated by microwaves without causing sparks or posing hazards.