Physics - Fluid Question with Solution | TestHub

PhysicsFluidSurface TensionMedium2 minQB
PhysicsMediumsingle choice

A rigid ring A and a rigid thin disk B both made of same material, when gently placed on water, just manage to float due to surface tension as shown in the figure. Both the ring and the disk have same radius. What can you conclude about their masses (thickness may be different)?

Question figure

Options:

Answer:
C
Solution:

Ring have double surface than that of disk.

Source diagram comparing upward surface-tension forces on ring and disk

Stream:JEESubject:PhysicsTopic:FluidSubtopic:Surface Tension
⏱ 2mℹ️ Source: QB

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