A piece of ice falls from a height h so that it melts completely. Only one-quarter of the heat produced is absorbed by the ice and all energy of ice gets converted into heat heat during its fall. The value of h is (Latent heat of ice is `3.4 xx 10^(5)` J/kg and g = 10N/kg)

Options

A. 544 km
B. 136 km
C. 68 km
D. 34 km

Answer

B