In a power supply diagram which block indicates a pulsating dc output?

In a power supply diagram, the block that indicates a pulsating DC output is typically labeled as a "Rectifier" or "Rectifying Stage." This component converts the AC input voltage into pulsating DC by allowing current to flow only in one direction. The resultant output is not smooth and contains ripples, which distinguishes it from a pure DC output. Further filtering is usually required to smooth out these fluctuations.