IIT JEE Advanced 2006 Paper 1

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Paragraph for Questions 24–26:
A wooden cylinder of diameter 4r, height h and density ρ/3 is kept on a hole of diameter 2r of a tank, filled with water of density ρ as shown in the figure. The height of the base of cylinder from the base of tank is H.
Section: Physics
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Question : 25 of 120
 
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Let the cylinder is prevented from moving up, by applying a force and water level is further decreased. Then, the height of water level (h2 in the figure) for which the cylinder remains in original position without application of force is
[JEE Adv 2006 P1]
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