When you tune a radio to certain station match the frequency of internal electrical circuit that In doing so employing principle of?

When you tune a radio to a certain station match the frequency of its internal electrical circuit, you are employing the principle of resonance. Resonance occurs when the frequency of an external force matches the natural frequency of an object or system. In the case of a radio, the external force is the electromagnetic waves emitted by the radio station, and the internal electrical circuit is the tuner. When the tuner is tuned to the same frequency as the radio station, the circuit resonates and amplifies the signal, allowing you to hear the broadcast.