List of top Physics Questions on potential energy asked in JEECUP

An object of 10 kg at a height of 5 m has potential energy (\(g = 9.8\,m/s^2\)): 

Two springs with spring constants \(K_1 = 1500 \, \text{N/m}\) and \(K_2 = 3000 \, \text{N/m}\) are stretched by the same force. The ratio of potential energy stored in spring will be