Answer:
Option A
Explanation:
The differential equation of simple harmonic motion is
d2ydt2+2y=0 or d2ydt2=−2y ...(i)
Standard equation of simple harmonic motion is
d2ydt2 =- ω2 y ....(ii)
Comparing eq. (i) and (ii)
ω2 = 2 or ω = √2
As we know,
ω=2πT
.'. TimePeriod, T = 2πω
= 2π√2 = π√2 sec