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Capillary Action

Choose the co...

Question

Choose the correct option. Consider tube to be made of glass.

A

A: water
B: mercury

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B

A: mercury
B: water

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C

A: hot water
B: cold water

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D

A: hot mercury
B: cold mercury

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Solution

The correct option is A A: water
B: mercury
Water forms concave meniscus with glass and mercury forms convex meniscus with glass.

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Similar questions

Q. Spray some mercury and some water on a glass surface. It will be observed that mercury forms _______ drops while water _______.

Q. The mercury in a thermometer rises when it is placed in hot water because ______.

Q. Water rises to a height of

10 cm

in a certain capillary tube. Another identical tube when dipped in mercury, the level of mercury is depressed by

3.42 cm

. Density of mercury is

13.6 {gm/cm}^{3}

. The angle of contact for water in contact with glass is

0^{\circ}

and mercury in contact with glass is

135^{\circ}

. Then the ratio of surface tension of water to that of mercury is:
(use

\frac{0.0342}{\sqrt{2}} = 0.024

)

Q. Why is Mercury very hot during the day and very cold at night?

Q. When a thermometer is kept in hot water, why does the level of mercury rise up?

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