For a full wave rectifier, if the input frequency is 50 Hz, the output frequency will be ___________.
Fill in the blank with the correct answer from the options given below.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 100 Hz
A full wave rectifier passes both half cycles of the input, reversing the negative half so that it also flows in the same direction through the load. Each input cycle therefore gives two output pulses, and the output repeats every half period of the input.
\( \displaystyle f_{\mathrm{out}} = 2 f_{\mathrm{in}} = 2 \times 50\,\mathrm{Hz} = 100\,\mathrm{Hz} \)
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 – …
