An object of mass 0.5 kg is executing simple harmonic motion. It 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 = T/4 s starting from mean position. Assume that the initial phase of the oscillation is zero.
(1) 0.62 J
(2) 6.2 × 10⁻³ J
(3) 1.2 × 10³ J
(4) 6.2 × 10³ J