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32. Bottom of a lake is at 0c and atmospheric temperature is -20C. If 1 cm ice is formed on the surface in 24 h, then time taken to form next 1 cm of ice is (2) 72 h o (4) 96 h (1) 24 h (3) 48 h |
| Answer» 32. Bottom of a lake is at 0c and atmospheric temperature is -20C. If 1 cm ice is formed on the surface in 24 h, then time taken to form next 1 cm of ice is (2) 72 h o (4) 96 h (1) 24 h (3) 48 h | |