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Ice starts forming in lake with water at...

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

A

7 hours

B

14 hours

C

28 hours

D

21 hours

Text Solution

Verified by Experts

The correct Answer is:
D
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