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Friday, 9 October

JEE Main 2021 · PhysicsNumerical answerNumerical valueHardMulti-step

JEE Main 3 August 2021, Shift 2, Physics Q30

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

A body of mass 20 kg is placed at a latitude of 45∘45^\circ on earth of radius RR and angular speed ω\omega. The change in weight of the body (if earth stops rotating) is x Rω2x\,R\omega^2. The value of xx is ‾\underline{\hspace{2em}}.

Official answer

10

NTA final key.

Topic
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Idea tested
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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 42 of the 174 JEE Main shifts held from 2017 to 2026.