Define the following as applied to radio receiver. Selectively Sensitivity

Selectivity

Selectivity refers to the ability of a radio receiver to discriminate between desired signals and unwanted signals (interference) within a given frequency range. It measures how effectively the receiver can reject signals outside of its intended tuning frequency. A radio receiver with high selectivity can distinguish closely spaced signals, reducing interference and improving signal reception clarity.

Sensitivity

Sensitivity measures the ability of a radio receiver to detect and amplify weak signals. It is expressed as the minimum signal level required for the receiver to produce an acceptable output signal-to-noise ratio. Higher sensitivity allows the receiver to detect weaker signals, enabling it to receive stations from greater distances or with weaker transmitters.