NEET 2016 Physics question
A piece of ice falls from a height 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 during its fall. The value of is: [Latent heat of ice is and ]
Answer: (3)
Solution
The loss of potential energy of mass is . One-quarter of it is absorbed by the ice and just melts it: . \dfrac{4L}{g}\dfrac${4 ×
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