JEE Main 2021 — Semiconductors Question with Solution
JEE Main 2021 (17 Mar Shift 1)
Question
The output of the given combination gates represents:

Choose an option
Show full solutionCorrect option: B
Correct answer
BNAND Gate
Step-by-step explanation
By De Morgan's theorem, we have

Here the output of and gives and . This output is fed as inputs to NAND gate and the output is , when when again fed as input to NAND gate to get output as .
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Semiconductors chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2021, covering the Semiconductors chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.