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Friday, 9 October

JEE Main 2026 · PhysicsMultiple choiceSingle correctMediumMulti-step

JEE Main 5 April 2026, Shift 1, Physics Q44

Question 44 of 75 in this shift, Physics question 19 of 25, Section A.

An a.c. source of angular frequency ω\omega is connected across a resistor RR and a capacitor CC in series. The current is observed as II. Now the frequency of the source is changed to ω/4\omega/4, (keeping the voltage unchanged) the current is found to be I/3I/3. The ratio of resistance to reactance at frequency ω\omega is
  1. (1)67\sqrt{\frac{6}{7}}
  2. (2)35\sqrt{\frac{3}{5}}
  3. (3)78\sqrt{\frac{7}{8}}Official answer
  4. (4)34\sqrt{\frac{3}{4}}

Official answer

Option 3

NTA final key.

Chapter
Alternating Current
Topic
Phasor Diagrams
Idea tested
Impedance Triangle Construction

Same idea in other shifts

Asked 4× in all
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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.