Q189 / 200 · MHT CET - Medical 2026 (25 April Shift 2) · Physics
The logic gate equivalent to given logic gate is


- AOR Gate
- Correct answerBAND Gate
- CNAND Gate
- DNOR Gate
Solution
The inputs $A$ and $B$ are passed through NOT gates, giving outputs $\bar{A}$ and $\bar{B}$.
These outputs are fed into a NOR gate. The Boolean expression for the final output $Y$ is:
$Y = \overline{\bar{A} + \bar{B}}$
Using De Morgan's theorem, $\overline{X + Y} = \bar{X} \cdot \bar{Y}$:
$Y = \overline{\bar{A}} \cdot \overline{\bar{B}}$
$Y = A \cdot B$
This represents the Boolean expression for an AND gate.
Answer: AND Gate
These outputs are fed into a NOR gate. The Boolean expression for the final output $Y$ is:
$Y = \overline{\bar{A} + \bar{B}}$
Using De Morgan's theorem, $\overline{X + Y} = \bar{X} \cdot \bar{Y}$:
$Y = \overline{\bar{A}} \cdot \overline{\bar{B}}$
$Y = A \cdot B$
This represents the Boolean expression for an AND gate.
Answer: AND Gate
Hence, the correct answer is option: 'B'.