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JEE Main Physics Class 11 Properties of Solids and Liquids Questions Part 1 Questions

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Question : 10

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A bottle has an opening of radius a and length b. A cork of length b and radius (a + Δa) where (Δa < < a) is compressed to fit into the opening completely (see figure). If the bulk modulus of cork is B and frictional coefficient between the bottle and cork is m then the force needed to push the cork into the bottle is :

[Online April 10, 2016]

(πµBb)a
(2πµBb)Δa
(πµBb)Δa
(4πµBb)Δa

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