Learn

Saturday, 31 October

JEE Main 2023 · PhysicsMultiple choiceDiagram basedMediumData or graph

JEE Main 13 April 2023, Shift 1, Physics Q40

Question 40 of 90 in this shift, Physics question 10 of 30, Section A.

Which graph represents the difference between total energy and potential energy of a particle executing SHM vs it's distance from mean position ?

The figure, in words

Four graphs of Energy (vertical axis) versus x (horizontal axis, marked -A, 0, +A).
  1. (1)[figure: graph of Energy vs x from -A to +A; dome-shaped (inverted parabola-like) curve with maximum at x = 0 and falling to zero at x = -A and x = +A]Official answer
  2. (2)[figure: graph of Energy vs x from -A to +A; triangular (straight-line, tent-shaped) with peak at x = 0 and zero at x = -A and x = +A]
  3. (3)[figure: graph of Energy vs x; upward-opening U-shaped (parabola-like) curve with minimum zero at x = 0, rising steeply towards -A and +A]
  4. (4)[figure: graph of Energy vs x; for x < 0 a rising dome-shaped curve from zero at -A up to maximum at x = 0, for x > 0 a curve decaying from the maximum at x = 0 down to zero near +A, concave up]

Official answer

Option 1

NTA final key.

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

Same idea in other shifts

Asked 2× in all
  1. 11 Apr 2023, Shift 1 · Q42The variation of kinetic energy (KE) of a particle executing simple harmonic motion with the displacement (xx) starting from mean…EasyDiagram 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.