# Properties of Solids & Liquids (NEET Physics): Questions 99 - 103 of 190

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## Question number: 99

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

MCQ▾

### Question

A film of water is formed between two straight parallel wires of length 10 cm each separated by 0.5 cm. If their separation is increased by 1 mm while still maintaining their parallelism, how much work will have to be done (Surface tension of water = 70 × 10 -2 N/m)

### Choices

Choice (4) Response

a.

2.88 × 10 -5 Joule

b.

1.44 × 10 -5 Joule

c.

7.22 × 10 -6 Joule

d.

5.76 × 10 -5 Joule

## Question number: 100

» Properties of Solids & Liquids » Young's Modulus

MCQ▾

### Question

A steel wire is 6.0 m long and 2 mm in diameter. Young’s modulus of steel is 1.96 × 10 11 N/m 2. If a mass of 30 kg is suspended from it the elongation produced will be -

### Choices

Choice (4) Response

a.

127 mm

b.

2.54 mm

c.

1.27 mm

d.

1.91 mm

## Question number: 101

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

### Question

The coefficient of apparent expansion of mercury in a glass vessel is 153 × 10 -6 /°C and in a steel vessel is 144 × 10 -6 / 0 C If a for steel is 12 × 10 -6 / 0 C, then that of glass is

### Choices

Choice (4) Response

a.

36 × 10 -6 / o C

b.

27 × 10 -6 /°C

c.

6 × 10- 6 /°C

d.

9 × 10 - 6/° C

## Question number: 102

» Properties of Solids & Liquids » Elastic Behavior

MCQ▾

### Question

The volume of a solid rubber ball when it is carried from the surface to the bottom of a 150 m deep lake decreases by 0.1 %. The value for bulk modulus of elasticity for rubber will be

### Choices

Choice (4) Response

a.

21 × l0 6 Pa

b.

15 × 10 -4 Pa

c.

15 × l0 8 Pa

d.

12 × l0 9 Pa

## Question number: 103

» Properties of Solids & Liquids » Specific Heat Capacity

MCQ▾

### Question

A student takes 50 gm wax (specific heat = 0.9 kcal/kg°C) and heats it till it boils. The graph between temperature and time is as follows. Heat supplied to the wax per minute and boiling point are respectively.

### Choices

Choice (4) Response

a.

2500 cal, 50°C

b.

1500 cal, 200°C

c.

2250 cal, 200°C

d.

1000 cal, 100°C

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