Learn

Saturday, 31 October

JEE Main 2023 · PhysicsNumerical answerNumerical valueEasyCalculation

JEE Main 10 April 2023, Shift 2, Physics Q52

Question 52 of 90 in this shift, Physics question 22 of 30, Section B.

Figure below shows a liquid being pushed out of the tube by a piston having area of cross section 2.0 cm2^2. The area of cross section at the outlet is 10 mm2^2. If the piston is pushed at a speed of 4 cm s−1^{-1}, the speed of outgoing fluid is ______ cm s−1^{-1}

The figure, in words

Horizontal tube with a piston at the left end and a narrowed outlet at the right end from which the liquid emerges as a spray; dashed flow lines drawn inside the tube.

Official answer

80

NTA final key.

Chapter
Mechanical Properties of Fluids
Topic
Fluid Dynamics
Idea tested
Equation of Continuity

Same idea in other shifts

Asked 2× in all
  1. 4 Apr 2026, Shift 2 · Q32A water spray gun is attached to a hose of cross sectional area 30 cm230\ \mathrm{cm^2}. The gun comprises of 10 perforations each of cross…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 108 of the 174 JEE Main shifts held from 2017 to 2026.