A binary ripple counter is designed to count from 0 to 15. If output frequency at MSB flip-flop is 64 Hz then what frequency has been applied at the LSB flip-flop?
(A) 2.048 MHz
(B) 1.024 KHz
(C) 16 Hz
(D) 64 Hz


Answer: (B)

Explanation: The given binary ripple counter counts from 0 to 15 or we can say that it is a MOD 16 counter.

fMSB = fLSB / MOD 
64 Hz = fLSB/ 16 
fLSB = 1.024 KHz 

So, option (B) is correct.

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