1.

In the given circuit as shown the two input waveform `A` and `B` are applied simultaneously. The resultant waveform `Y` is A. B. C. D.

Answer» Correct Answer - A
(`1`=high,`0`=low)
Input to `A` is in the sequence, `1,0,1,0`.
Input to `B` is in the sequence, `1,0,0,1`.
Sequence is inverted by `NOT`gate.
Thus inputs to `OR` gate becomes `0,1,0,1` and ouput `OR` gate becomes `0,1,1,1`
Since for `OR` gate `0+1=1`. hence choice `(a)` is correct.


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