Q.A ball of mass 1 kg and another of mass 2 kg are dropped from a tall building whose height is 80 m. After a fall of 40 m each towards Earth, their respective kinetic energies will be in the ratio of (AIPMT model 2004)

(a) 2 : 1

(b) 1 : 2

(c) 2 : 1

(d) 1 : 2 [The source scan prints options

(a) and

(c) identically as "2 : 1", and options

(b) and

(d) identically as "1 : 2" -- almost certainly because a square-root symbol on one option of each pair was lost during extraction, but which option carried it cannot be recovered with confidence, so the exact distinguishing option text is not reliably transcribable.]