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Ice starts forming in lake with water at...

Ice starts forming in lake with water at `0^(@)C` and when the atmospheric temperature is `-10^(@)C`. If the time taken for `1 cm` of ice be `7` hours. Find the time taken for the thickness of ice to change from `1 cm` to `2 cm`

A

`7hour`

B

`14hour`

C

`lt7hour`

D

`gt14hour`

Text Solution

Verified by Experts

The correct Answer is:
D

`t=(rhoL)/(2KT)(x_(2)^(2)-x_(1)^(2)),tpropx_(2)^(2)-x_(1)^(2)`
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