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NEET PHYSICSEasy

The symbolic representations of four logic gates are given. The logic symbols for OR, NOT and NAND gates are respectively:

A

(iii), (iv), (ii)

B

(iv), (i), (iii)

C

(iv), (ii), (i)

D

(i), (iii), (iv)

Step-by-Step Solution

To identify the logic gates from their standard symbolic representations:

  1. OR Gate: Represented by a symbol with a curved input side and a pointed output. Based on the provided correct sequence, this corresponds to (iv).
  2. NOT Gate: Represented by a triangle with a small bubble (inversion circle) at the output. This corresponds to (ii).
  3. NAND Gate: Represented by a D-shaped AND gate symbol with a small bubble at the output. This corresponds to (i).
  4. Conclusion: Therefore, the correct sequence for OR, NOT, and NAND gates is (iv), (ii), and (i) respectively.
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