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Saturday, 31 October

JEE Main 2023 · PhysicsMultiple choiceDiagram basedEasyData or graph

JEE Main 11 April 2023, Shift 1, Physics Q42

Question 42 of 90 in this shift, Physics question 12 of 30, Section A.

The variation of kinetic energy (KE) of a particle executing simple harmonic motion with the displacement (xx) starting from mean position to extreme position (A) is given by

The figure, in words

Four KE vs x graphs (x from 0 to extreme position A) given as the options.
  1. (1)[figure: graph of KE vs x from 0 to A, straight line rising from the origin]
  2. (2)[figure: graph of KE vs x from 0 to A, horizontal line (constant KE)]
  3. (3)[figure: graph of KE vs x from 0 to A, convex curve rising from the origin]
  4. (4)[figure: graph of KE vs x from 0 to A, KE maximum at x = 0 decreasing in a concave (elliptical) curve to zero at x = A]Official answer

Official answer

Option 4

NTA final key.

Chapter
Oscillations
Topic
Energy in SHM
Idea tested
Energy-Displacement Graphs

Same idea in other shifts

Asked 2× in all
  1. 13 Apr 2023, Shift 1 · Q40Which graph represents the difference between total energy and potential energy of a particle executing SHM vs it's distance from mean…MediumDiagram basedHas a figure

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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.