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Friday, 9 October

JEE Main 2026 · PhysicsMultiple choiceSingle correctMediumCalculation

JEE Main 6 April 2026, Shift 1, Physics Q35

Question 35 of 75 in this shift, Physics question 10 of 25, Section A.

Two closed vessels of same volume are joined through a narrow tube and both vessels are filled with air of pressure 90 kPa and temperature 400 K. Keeping the temperature of one vessel constant at 400 K the second vessel temperature is raised to 500 K. The final pressure in the vessels is ________ kPa.
  1. (1)100Official answer
  2. (2)120
  3. (3)90
  4. (4)105

Official answer

Option 1

NTA final key.

Chapter
Kinetic Theory
Topic
Ideal Gas Laws
Idea tested
Connected Gas Bulbs Equilibrium

Same idea in other shifts

Asked 2× in all
  1. 4 Apr 2025, Shift 2 · Q45There are two vessels filled with an ideal gas where volume of one is double the volume of other. The large vessel contains the gas at 8…MediumSingle correct

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.