# Properties of Solids & Liquids (AIIMS (All India Institute of Medical Sciences) Physics): Questions 43 - 47 of 48

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## Question number: 43

» Properties of Solids & Liquids » Elastic Behavior

MCQ▾

### Question

A wire has length 1.5 m and radius 1.5 mm and another wire has length 4.5 m and radius 4.5 mm. Both are fixed at one end and twisted at other end. Calculate the ratio of couples required to twist the wires through the same angle. The wires are made of the same material.

### Choices

Choice (4) Response

a.

b.

c.

27

d.

## Question number: 44

» Properties of Solids & Liquids » Viscosity

MCQ▾

### Question

A water drop of mass is introduced between two plates with separation Calculate the force of attraction between the plates.

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 45

» Properties of Solids & Liquids » Pressure Due to a Fluid Column

MCQ▾

### Question

A common hydrometer, which is graduated from 0 to 10 downwards, reads zero when floating in water and 10 when floating in liquid of specific gravity 1.4. In an unknown liquid it reads 7, the specific gravity of the unknown liquid is –

### Choices

Choice (4) Response

a.

1.4

b.

1.3

c.

1.2

d.

1.6

## Question number: 46

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

Appeared in Year: 2006

MCQ▾

### Question

Area of liquid film is and surface tension is , what is the work done to change area up to : [RPMT]

### Choices

Choice (4) Response

a.

b.

c.

d.

## 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.

b.

c.

r

d.