Properties of Solids & Liquids (AIIMS Physics): Questions 46 - 48 of 48

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Question number: 46

» Properties of Solids & Liquids » Surface Energy and Surface Tension

Appeared in Year: 2006

MCQ▾

Question

Area of liquid film is 6×10cm2 and surface tension is T=20dynecm , what is the work done to change area up to 12×10cm2 : [RPMT]

Choices

Choice (4) Response

a.

120erg

b.

120joule

c.

1200joule

d.

1200erg

Question number: 47

» Properties of Solids & Liquids » Surface Energy and Surface Tension

Appeared in Year: 1996

MCQ▾

Question

Two soap bubbles each of radius 20 cm are touching each other. The radius of curvature of the common surface will be – [RPMT]

Choices

Choice (4) Response

a.

2r

b.

Infinite

c.

r

d.

r2

Question number: 48

» Properties of Solids & Liquids » Application of Surface Tension

Appeared in Year: 1997

MCQ▾

Question

Water rises in a capillary up to a height h . If now this capillary is tilted by an angle of 450 , then the length of the water column in the capillary becomes – [RPMT]

Choices

Choice (4) Response

a.

2h

b.

h2

c.

h2

d.

h2

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