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Saturday, 31 October

JEE Main 2024 · PhysicsNumerical answerNumerical valueHardMulti-step

JEE Main 30 January 2024, Shift 2, Physics Q55

Question 55 of 90 in this shift, Physics question 25 of 30, Section B.

Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of 37∘37^\circ with each other. When suspended in a liquid of density 0.7 g/cm30.7\ g/cm^3, the angle remains same. If density of material of the sphere is 1.4 g/cm31.4\ g/cm^3, the dielectric constant of the liquid is ________ (tan⁡37∘=34)\left(\tan 37^\circ = \frac{3}{4}\right)

Official answer

2

NTA final key.

Chapter
Electric Charges and Fields
Topic
Coulomb's Law
Idea tested
Suspended Charges Immersed in Liquid

Same idea in other shifts

Asked 2× in all
  1. 1 Feb 2024, Shift 1 · Q55Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle θ\theta with each other. When…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.