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Most Important Selected Qs for JEE AdvancedPhysicsMechanical Properties of Fluids

A cubical block of volume v and density 3 is placed inside a liquid of density and attached to a spring of spring constant k as shown in the figure. Assuming ideal spring and pulley and spring is attached at A which is at R 2 from centre. The compression in the spring at equilibrium is x p v g k , where x =

Correct answer

4

Step-by-step solution

Tension in the string T=m g-F_B=3 v g- v g=2 v g Balancing torque k x R 2=T R x=2 T / k=4 V g / k An; x =4

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