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Saturday, 31 October

JEE Main 2024 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 8 April 2024, Shift 2, Physics Q53

Question 53 of 90 in this shift, Physics question 23 of 30, Section B.

Small 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 condensation, if 8 such droplets are coalesced and formed a larger drop, the new terminal velocity will be ________ cm/s.

Official answer

40

NTA final key.

Chapter
Mechanical Properties of Fluids
Topic
Viscosity
Idea tested
Terminal Velocity of Coalescing Drops

Same idea in other shifts

Asked 2× in all
  1. 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

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 108 of the 174 JEE Main shifts held from 2017 to 2026.