# Properties of Solids & Liquids-Surface Energy and Surface Tension (NEET Physics): Questions 20 - 23 of 23

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## Question number: 20

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

MCQ▾

### Question

The radii of two soap bubbles are r 1 and r 2. In isothermal conditions, two meet together in vacuum. Then the radius R of the resultant bubble is given by

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 21

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

MCQ▾

### Question

When a body falls in air, the resistance of air depends to a rate extent on the shape of the body, 3 different shapes disc, ball and cigar shape. Identify the combination of air resistances which truly represents the physical situation. (The cross sectional areas are the same).

### Choices

Choice (4) Response

a.

2 < 3 < 1

b.

3 < 1 < 2

c.

3 < 2 < 1

d.

1 < 2 < 3

## Question number: 22

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

MCQ▾

### Question

A homogeneous solid cylinder of length L and cross-sectional area is immersed such that it floats with its axis vertical at the liquid-liquid interface with length in the denser liquid as shown in the fig. The lower density liquid is open to atmosphere having pressure P Q. Then density of solid is given by

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 23

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

Appeared in Year: 2016

MCQ▾

### Question

A rectangular film of liquid is extended from to . If the work done is , the value of the surface tension of the liquid is –

### Choices

Choice (4) Response

a.

b.

c.

d.

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