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Saturday, 31 October

JEE Main 2023 · PhysicsNumerical answerNumerical valueMediumCalculation

JEE Main 15 April 2023, Shift 1, Physics Q59

Question 59 of 90 in this shift, Physics question 29 of 30, Section B.

An election in a hydrogen atom revolves around its nucleus with a speed of 6.76×1066.76 \times 10^6 ms−1^{-1} in an orbit of radius 0.52 Ao^{o}. The magnetic field produced at the nucleus of the hydrogen atom is ____________ T.

Official answer

40

NTA final key.

Same idea in other shifts

Asked 2× in all
  1. 25 Feb 2021, Shift 1 · Q16Magnetic fields at two points on the axis of a circular coil at a distance of 0.05 m and 0.2 m from the centre are in the ratio 8 : 1. The…MediumSingle 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. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.