Output frequency of half-wave and full-wave rectifiers

This type of question, asked 2 times: May 2022 S1, 9 May 2024 S2. All 2 questions below, oldest first.

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Question 1
May 2022 S1
48 $In a full wave rectifier circuit without filter, the output current is$
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Question 2
9 May 2024 S2
25 $If the frequency of the input voltage is 50 Hz, applied to (a) half wave rectifier and (b) full wave rectifier. The output frequency in both cases is respectively$
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