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1. |
A cylindrical tank of area 5m2 contains water filled to a height of 10cm. A hole of area 0.005m2 is present at the bottom. What is the time required for the water level to become half? |
A. | 100s |
B. | 10s |
C. | 1min |
D. | 10min |
Answer» B. 10s | |