Physics · PYQ NEET UG 2023
Englishनिम्नलिखित तर्क परिपथ (logic circuit) के लिए सत्यता सारणी (truth table) है:
सही उत्तर · विकल्प 1
A B Y
0 0 1
0 1 1
1 0 1
1 1 0
व्याख्या
Inputs A and B pass through NOT gates (inverters), giving \( \bar{A} \) and \( \bar{B} \). These are connected to a NAND gate, so \( Y = \overline{\bar{A} \cdot \bar{B}} = A + B \) (by De Morgan's Law, which is equivalent to an OR gate). Checking the truth table for OR gate: 0,0->0; 0,1->1; 1,0->1; 1,1->1.