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A piece of ice falls from a height `h` so that it melts completely. Only one-quarter of the heat produced is absobed by the ice and all energy of ice gets converted into heat during its fall. The value of `h` is
[Latent heat of ice is `3.4 xx 10^(5) J//kg` and `g = 10 N//kg`]
A. `34 km`
B. `544 km`
C. `136 km`
D. `68 km`

1 Answer

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Best answer
Correct Answer - C
`(mgh)/(4) = mL`
`rArr h = (4L)/(g) = (4xx3.4xx10^(5))/(10) = 136 km`.

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