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

Options

A.
B.
C.
D.

Answer

A

Explanation

(`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.