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Saturday, 31 October

JEE Main 2024 · PhysicsMultiple choiceSingle correctMediumCalculation

JEE Main 30 January 2024, Shift 1, Physics Q32

Question 32 of 90 in this shift, Physics question 2 of 30, Section A.

A particle of mass m is projected with a velocity 'u' making an angle of 30∘30^\circ with the horizontal. The magnitude of angular momentum of the projectile about the point of projection when the particle is at its maximum height h is :
  1. (1)32mu2g\frac{\sqrt{3}}{2}\frac{mu^2}{g}
  2. (2)zero
  3. (3)316mu3g\frac{\sqrt{3}}{16}\frac{mu^3}{g}Official answer
  4. (4)mu32 g\frac{mu^3}{\sqrt{2}\,g}

Official answer

Option 3

NTA final key.

Same idea in other shifts

Asked 2× in all
  1. 31 Jan 2024, Shift 2 · Q51A body of mass 'mm' is projected with a speed 'uu' making an angle of 45∘45^\circ with the ground. The angular momentum of the body about…MediumNumerical value

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.