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Friday, 9 October

JEE Main 2022 · PhysicsMultiple choiceSingle correctMediumApplication

JEE Main 24 June 2022, Shift 1, Physics Q46

Question 46 of 90 in this shift, Physics question 16 of 30, Section A.

A baseband signal of 3.5 MHz frequency is modulated with a carrier signal of 3.5 GHz frequency using amplitude modulation method. What should be the minimum size of antenna required to transmit the modulated signal ?
  1. (1)42.8 m
  2. (2)42.8 mm
  3. (3)21.4 mmOfficial answer
  4. (4)21.4 m

Official answer

Option 3

NTA final key (2022 Session 1).

Chapter
Communication Systems
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.