Justify the output waveform (Y) of the OR gate for the following inputs A and B given in the figure below .

Explanation

At `t lt t_(1) , " " A = 0 , B = 0 , ` Hence Y = 0
For `t_(1)` to `t_(2) , " " A =1 , B = 0` , Hence Y = 1
For `t_(2)` to `t_(3) , " " A = 1 , B = 1,` Hence Y = 1
For `t_(3)` to `t_(4) , " " A = 0 , B = 1` , Hence Y = 1
For `t_(4)` to `t_(5), " " A = 0 , B = 0`, Hence Y = 0
For `t_(5)` to `t_(6) , " " A = 1 , B = 0` , Hence Y = 1
For `t gt t_(6) , " " A = 0 , B = 1` , Hence Y = 1
Therefore the waveform Y will be as shown in the figure .