The frequency of an input-signal is 50 Hz. The frequencies of an output signal for a half wave rectifier and a full wave rectifier will be respectively:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 50 Hz, 100 Hz
The output frequency of a rectifier is the number of output pulses per second.
A half wave rectifier passes only one half of each input cycle, so it gives one pulse per cycle: the output frequency equals the input frequency, 50 Hz.
A full wave rectifier turns both halves of each cycle into pulses in the same direction, so it gives two pulses per cycle: the output frequency is twice the input, 100 Hz.
Note: A similar question was also asked in CUET (UG) 2025 on 21-05-2025 (Slot 2).
Note: This question is from NCERT (2026-27). NTA sets numerical questions from NCERT too, so do not ignore NCERT while practising numericals.
NCERT (2026-27):
Exercises – …
