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Friday, 9 October

JEE Main 2025 · PhysicsMultiple choiceSingle correctMediumMulti-step

JEE Main 3 April 2025, Shift 1, Physics Q32

Question 32 of 75 in this shift, Physics question 7 of 25, Section A.

Consider a completely full cylindrical water tank of height 1.6 m and of cross-sectional area 0.5 m20.5\ \mathrm{m^2}. It has a small hole in its side at a height 90 cm from the bottom. Assume, the cross-sectional area of the hole to be negligibly small as compared to that of the water tank. If a load 50 kg is applied at the top surface of the water in the tank then the velocity of the water coming out at the instant when the hole is opened is: (g=10 m/s2g = 10\ \mathrm{m/s^2})
  1. (1)2 m/s
  2. (2)3 m/s
  3. (3)4 m/sOfficial answer
  4. (4)5 m/s

Official answer

Option 3

NTA final key.

Chapter
Mechanical Properties of Fluids
Topic
Fluid Dynamics
Idea tested
Efflux from a Pressurized Tank

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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.