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Saturday, 31 October

JEE Main · Physics · Mechanical Properties of Fluids

Terminal Velocity of Coalescing Drops

JEE Main asked Terminal Velocity of Coalescing Drops 2 times in 2 of the 108 shifts Lumi analysed, in 2023 and 2024. It belongs to Viscosity, in Mechanical Properties of Fluids (Physics). The longest wait between two years asking it was 1 year.

Updated 2026-10-24

Times asked
2
in 2 shifts
Years
2 of 8
First asked
2023
last in 2024
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2023 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Physics questions.

00.050.10’170’200’210’220.07’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 1 in 12 shifts · 2024: 1 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20260 of 9
  • 20250 of 8
  • 20241 of 18
  • 20231 of 12
  • 20220 of 24
  • 20210 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Numerical value is the usual form. Skill tested: calculation.

  • Terminal velocity of coalesced drop
  • Terminal velocity of coalesced drops

Difficulty

Easy 0Medium 2Hard 0

1 of the 2 questions had a numerical answer.

Every question

All 2 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 8 Apr 2024, Shift 2 · Q53Small water droplets of radius 0.01 mm are formed in the upper atmosphere and falling with a terminal velocity of 10 cm/s. Due to…MediumNumerical value
  2. 11 Apr 2023, Shift 2 · Q36Eight equal drops of water are falling through air with a steady speed of 10 cm/s10\ \mathrm{cm/s}. If the drops coalesce, the new velocity is:-MediumSingle correct

Shifts: 11 Apr 2023, Shift 2, 8 Apr 2024, Shift 2.

Same topic

Other ideas in Viscosity

Viscosity has 11 ideas JEE Main has asked; 6 of them came up in more than one question.

Topic analysisChapter analysisStudy this chapterAll repeated ideas