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A piece of ice falls from a height h so ...

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

34km

B

544 km

C

136 km

D

68 km

Text Solution

Verified by Experts

The correct Answer is:
C
`(mgh)/(4) = mL`
`rArr h = (4L)/(g) = (4 xx 3.4 xx 10^5)/(10) = 136 km.`
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