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A piece of ice balls from a height 'h' s...

A piece of ice balls 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 in to 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

544 km

B

136 km

C

68 km

D

34 km

Text Solution

Verified by Experts

The correct Answer is:
B
` (mgh)/4 =mL `
` :. H = (4L)/g`
`= (4xx3.4 xx10^(5))/(10)`
= 136 km
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