Refer to the logic circuit given below. For two inputs ( A = 1, B = 1) and ( A = 0, B = 1), output ( Y) will be ______. (a) 1, 0 respectively (b) 0, 1 respectively (c) 0, 0 respectively (d) 1, 1 respectively

Answer: (c). OR gate gives A + B; AND gate gives A · B; final NOR: Y = (A + B) + A B = A + B. A = 1, B = 1: A + B = 1, so Y = 0. A = 0, B = 1: A + B = 1, so Y = 0. So the answer is (c) 0, 0 respectively.

Refer to the logic circuit given below. For two inputs ( A = 1, B =… | JEE Main 2026 (6 Apr, Shift 2)

Q18JEE Main 2026 · 6 APR · SHIFT 2Medium

Logic Gates

Refer to the logic circuit given below. For two inputs ( $A = 1, B = 1$ ) and ( $A = 0, B = 1$ ), output ( Y) will be ______.

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Answer: (c)

OR gate gives $\bar{A} + B$ ; AND gate gives $\bar{A} \cdot B$ ; final NOR: $Y = \overline{(\bar{A} + B) + \bar{A} B} = \overline{\bar{A} + B}$ .
$A = 1, B = 1$ : $\bar{A} + B = 1$ , so $Y = 0$ .
$A = 0, B = 1$ : $\bar{A} + B = 1$ , so $Y = 0$ .
So the answer is (c) 0, 0 respectively.

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Logic Gates question from JEE Main 2026 (6 Apr, Shift 2)

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