An object of mass \(0.5 \ kg\) executing simple harmonic motion. Its amplitude is \(5 \ cm\) and time period \((T)\) is …

An object of mass \(0.5 \ kg\) executing simple harmonic motion. Its amplitude is \(5 \ cm\) and time period \((T)\) is \(0.2 \ s\). What will be the potential energy of the object at an instant \(t=\frac{T}{4} s\) starting from mean position. Assume that the initial phase of the oscillation is zero.

[JEE Main 2021, 27 Jul (Shift 2)]