Water is dropped at the rate of 2 m 3 /sec into a cone of semi vertical angle of 45°. The…
Mathematics · JEE Main · NTA Exams — Differential Equations
Water is dropped at the rate of 2 m3/sec into a cone of semi vertical angle of 45°. The rate at which periphery of water surface changes when height of water in the cone is 2 meters is
- 2 m/sec
- 1 m/sec
- 3 m/sec
- 4 m/sec
Answer
(B) 1 m/sec
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