Consider a spring-mass simple harmonic oscillator in one dimension. The mass of the particle is m kg and the spring constant is k Nm^-1. At a given instant, the extension of the spring is x meter and the speed of the particle is v ms^-1. On the x - v plane, if the graph of v as a function of x is a circle, then the correct option is :

NEET UG 2026 · Physics · Question 28

NEET 2026 Physics, question 28

Question 28 of the NEET 2026 paper (re-exam) is a Physics question from Oscillations. Its idea, Velocity-Position (v-x) Graph Shape, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.

Updated 2026-10-08

Q28 · Physics

^{-1}

k=\frac{1}{m}

Official answer: option 2 · NTA final answer key

Same idea

The only question on Velocity-Position (v-x) Graph Shape

No other NEET paper from 2017–2026 tested this exact idea.

Velocity-Position (v-x) Graph Shape: every question and how it was framed

The chapter

Oscillations in ten years of NEET

17 questions from 2017–2026, asked in 10 of 10 papers, about 1.6 a paper. Simple Harmonic Motion alone had 16.

Chapter analysis Study this chapter Practise this chapter

The only question on Velocity-Position (v-x) Graph Shape

Oscillations in ten years of NEET

Oscillations: questions per paper