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Karnataka Board PUCPUC Science Class 11

A Piece of Wood is Floating in Water Kept in a Bottle. the Bottle is Connected to an Air Pump. - Physics

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Question

A piece of wood is floating in water kept in a bottle. The bottle is connected to an air pump. Neglect the compressibility of water. When more air is pushed into the bottle from the pump, the piece of wood will float with

Options

  • larger part in the water

  • lesser part in the water

  •  same part in the water

  •  it will sink

MCQ
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Solution

same part in the water

When more air is pushed into the bottle from the pump, the pressure of air increases on the wood as well as on the water surface with the same amount. So, the level of water and wood does not change. Thus, the piece of wood floats with the same part in the water.

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Chapter 13: Fluid Mechanics - MCQ [Page 272]

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HC Verma Concepts of Physics Vol. 1 [English] Class 11 and 12
Chapter 13 Fluid Mechanics
MCQ | Q 13 | Page 272

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