If an open glass tube of small diameter is partially immersed in a vessel containing mercury, the free surface of the mercury in the tube will be

a. higher than the mercury in the vessel and shaped like the inside of a bowl.

b. lower than the mercury in the vessel and shaped like the inside of a bowl.

c. higher than the mercury in the vessel and shaped like the outside of an umbrella.

d. lower than the mercury in the vessel and shaped like the outside of an umbrella.

Question

Physics

Selena

31 October, 07:47

If an open glass tube of small diameter is partially immersed in a vessel containing mercury, the free surface of the mercury in the tube will be

a. higher than the mercury in the vessel and shaped like the inside of a bowl.

b. lower than the mercury in the vessel and shaped like the inside of a bowl.

c. higher than the mercury in the vessel and shaped like the outside of an umbrella.

d. lower than the mercury in the vessel and shaped like the outside of an umbrella.

+5

Answers (1)

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Yaretzi Randolph · Answer 1

lower than the mercury in the vessel and shaped like the outside of an umbrella.

the inter-molecular forces within the mercury exceed those between the glass and the mercury, so a convex meniscus forms and capillary action works in reverse.