Question: 33: In half wave rectification, if the input frequency is 60 Hz , then the output frequency would be
(1) 60 Hz
(2) 120 Hz
(3) Zero
(4) 30 Hz
Answer: Option (1)
Explanation:
In half wave rectification, only one half of the alternating current input signal is allowed to pass through the diode, while the other half is blocked.
Although half of the input cycles are removed, the time period of the output waveform remains the same as that of the input alternating current.
The frequency of a waveform is defined as the number of cycles per second. In half wave rectification,
one output pulse is obtained for each input cycle.
Therefore, if the input frequency is 60 \ \text{Hz},
the output frequency is also 60 \ \text{Hz}.
Hence, the correct answer is Option (1).