From the figure, A=2m
21mω2A2=10
21mω2(2)2=10
mω2=5
5(ω2)=5
ω2=1
ω=1
T=ω2π=2π
2πgpℓ=2π
2πgp4=2π
gp=4m/s2
JEE Main 2021 — Physics Waves & Oscillations
2021mcqhard
A mass of 5kg is connected to a spring. The potential energy curve of the simple harmonic motion executed by the system is shown in the figure. A simple pendulum of length 4m has the same period of oscillation as the spring system. What is the value of acceleration due to gravity on the planet where these experiments are performed ?
Official previous-year question
Held on 1 Sept 2021 · Verified 6 Jul 2026.
Options
- A
4ms−2
- B
8ms−2
- C
5ms−2
- D
10ms−2
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