JEE Main 2021 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 4 August 2021, Shift 1, Physics Q2

Question 2 of 90 in this shift, Physics question 2 of 30, Section A.

A ship’s anchor of density 7500 kg/m

^3

appears 196N lighter when completely submerged in water of density 1000 kg/m

^3

than in air. The anchor’s weight in air will be ________ N. (Take g = 9.8 m/s

^2

)

(1)6500
(2)1960
(3)5540
(4)1470Official answer

Official answer

Option 4

NTA final key.

Chapter: Mechanical Properties of Fluids
Topic: Fluid Statics
Idea tested: Apparent Weight in Fluids

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