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Water flows into a large tank with flat bottom at the rate of 10 –4 m 3 s –1 . Water is also leaking out of a hole of area 1 cm 2 at its bottom. If the height of the water in the tank remains steady, then this height is -

1. 2.9 cm
2. 5.1 cm
3. 4 cm
4. 1.7 cm

Correct answer: 5.1 cm

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