Properties of Solids & Liquids-Application of Surface Tension (NEET Physics): Questions 4 - 8 of 8

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Passage

Read the passage given below and answer the questions that follow:

There is a small mercury drop of radius 4.0 mm. A surface P of area 1.0 mm 2 is placed at the top of the drop. Atmospheric pressure = 10 5 Pa. Surface tension of mercury = 0.465 N/m. Gravity effect is negligible.

Question number: 4 (1 of 2 Based on Passage) Show Passage

» Properties of Solids & Liquids » Application of Surface Tension

MCQ▾

Question

The force exerted by air on surface P is

Choices

Choice (4) Response
a.

0.1 N

b.

1.0N

c.

1.0023 N

d.

10 5 N

Question number: 5 (2 of 2 Based on Passage) Show Passage

» Properties of Solids & Liquids » Application of Surface Tension

MCQ▾

Question

The force exerted by mercury drop on the surface P is

Choices

Choice (4) Response
a.

1.0023 N

b.

0.00023 N

c.

0.10023 N

d.

0.1 N

Passage

Read the passage given below and answer the questions that follow:

There is a small mercury drop of radius 5.0 mm. A surface P of area 2.0 mm 2 is placed at the top of the drop. Atmospheric pressure = 10 5 Pa. Surface tension of mercury = 0.465 N/m. Gravity effect is negligible.

Question number: 6 (1 of 2 Based on Passage) Show Passage

» Properties of Solids & Liquids » Application of Surface Tension

MCQ▾

Question

The force exerted by mercury drop on the surface P is

Choices

Choice (4) Response
a.

0.3 N

b.

1.3456 N

c.

0.10086 N

d.

0.10023 N

Question number: 7 (2 of 2 Based on Passage) Show Passage

» Properties of Solids & Liquids » Application of Surface Tension

MCQ▾

Question

The force exerted by air on surface P is

Choices

Choice (4) Response
a.

0.2 N

b.

0.1 N

c.

1.0023 N

d.

2.0 N

Question number: 8

» Properties of Solids & Liquids » Application of Surface Tension

Appeared in Year: 2016

MCQ▾

Question

Three liquids of densities ρ1,ρ2 and ρ3 (with ρ1>ρ2>ρ3 ), having the same value of surface tension T, rise to the same height in three identical capillaries. The angle of contact θ1,θ2 and θ3 obey –

Choices

Choice (4) Response
a.

π2<θ1>θ2>θ3<π

b.

π2>θ1>θ2>θ30

c.

0θ1<θ2<θ3<π2

d.

π>θ1>θ2>θ3<π2

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