NEET UG 2021 · Physics · Question 13
NEET 2021 Physics, question 13
Question 13 of the NEET 2021 paper (code O1) is a Physics question from Oscillations. Its idea, Horizontal Spring-Mass Time Period, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 2.
Updated 2026-10-08
Q13 · Physics
A spring is stretched by 5 cm by a force 10 N. The time period of the oscillations when a mass of 2 kg is suspended by it is :
- 13.14 s
- 20.628 sOfficial answer
- 30.0628 s
- 46.28 s
Official answer: option 2 · NTA final answer key
Same idea
The only question on Horizontal Spring-Mass Time Period
No other NEET paper from 2017–2026 tested this exact idea.
Horizontal Spring-Mass Time Period: 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.