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A J-K flip-flop with J = 1 and K = 1 has a 20 kHz clock input. The Q output is _____________

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A J-K flip-flop with J = 1 and K = 1 has a 20 kHz clock input. The Q output is _____________

(a) Constantly LOW

(b) Constantly HIGH

(c) A 20 kHz square wave

(d) A 10 kHz square wave

The question was posed to me in exam.

I would like to ask this question from Triggering of Flip Flops topic in chapter Flip-Flops of Digital Circuits

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Right choice is (d) A 10 kHz square wave

The best I can explain: As one flip flop is used so there are two states available. So, 20/2 = 10Hz frequency is available at the output.

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