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Friday, 9 October

JEE Main 2024 · PhysicsMultiple choiceSingle correctEasyData or graph

JEE Main 31 January 2024, Shift 1, Physics Q37

Question 37 of 90 in this shift, Physics question 7 of 30, Section A.

A small steel ball is dropped into a long cylinder containing glycerine. Which one of the following is the correct representation of the velocity time graph for the transit of the ball?

The figure, in words

Options are v-t graphs (axes v vertical, t horizontal).
  1. (1)[figure: v vs t graph, straight line rising from the origin]
  2. (2)[figure: v vs t graph, line rising from the origin to a peak then falling linearly back to zero (triangle shape)]
  3. (3)[figure: v vs t graph, curve rising from the origin with decreasing slope, flattening to a constant value]Official answer
  4. (4)[figure: v vs t graph, constant v for an initial interval then decreasing linearly]

Official answer

Option 3

NTA final key.

Chapter
Mechanical Properties of Fluids
Topic
Viscosity
Idea tested
Velocity-Time Graph of Terminal Velocity

Same topic in other shifts

All Viscosity questions
  1. 2 Apr 2026, Shift 2 · Q35If an air bubble of diameter 2 mm rises steadily through a liquid of density 2000 kg/m3^3 at a rate of 0.5 cm/s, then the coefficient of…MediumSingle correct
  2. 8 Apr 2026, Shift 2 · Q34A spherical liquid drop of radius RR acquires the terminal velocity v1v_1 when falls through a gas of viscosity η\eta. Now the drop is…MediumSingle correct
  3. 3 Apr 2025, Shift 2 · Q32A solid steel ball of diameter 3.6 mm acquired terminal velocity 2.45×10−22.45 \times 10^{-2} m/s while falling under gravity through an oil of…EasySingle correct
  4. 9 Apr 2024, Shift 2 · Q40A spherical ball of radius 1×10−41\times10^{-4} m and density 105 kg/m310^5\ \mathrm{kg/m^3} falls freely under gravity through a distance hh before…HardSingle correct
  5. 31 Jan 2024, Shift 2 · Q37A small spherical ball of radius rr, falling through a viscous medium of negligible density has terminal velocity 'v'. Another ball of…MediumSingle correct
  6. 6 Apr 2023, Shift 1 · Q33A small ball of mass M and density ρ\rho is dropped in a viscous liquid of density ρ0\rho_0. After some time, the ball falls with a…EasySingle 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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.