Q189 / 200 · MHT CET - Medical 2026 (25 April Shift 2) · Physics

The logic gate equivalent to given logic gate is
Figure

  • A
    OR Gate
  • Correct answer
    B
    AND Gate
  • C
    NAND Gate
  • D
    NOR 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

Hence, the correct answer is option: 'B'.

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