# Properties of Solids & Liquids (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 116 - 119 of 190

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## Question number: 116

» Properties of Solids & Liquids » Young's Modulus

MCQ▾

### Question

Which of the following relations are false

(1)

(2)

(3)

(4)

Select the correct answers and mark it according to the following codes:

### Choices

Choice (4) Response

a.

1 and 3 are correct

b.

1,2 and 3 are correct

c.

2 and 4 are correct

d.

1 and 2 are correct

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## Question number: 117

» Properties of Solids & Liquids » Stress-Strain Relationship

MCQ▾

### Question

A brass rod is to support a load of 800 N. If it’s elastic limit is 8.0xl0 8 N/m 2 its minimum diameter must be -

### Choices

Choice (4) Response

a.

3.71 mm

b.

1.13 mm

c.

1.59 mm

d.

4.52 mm

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## Question number: 118

» Properties of Solids & Liquids » Thermal Expansion

Assertion-Reason▾

### Assertion (Ꭺ)

A brass disc is just fitted in a hole in a steel plate. The system must be cooled to loosen the disc from the hole.

### Reason (Ꭱ)

The coefficient of linear expansion for brass is greater than the coefficient of linear expansion for steel.

### Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are false

d.

Ꭺ is false but Ꭱ is true

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## Question number: 119

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

### Question

A rod of length 20 cm is made of metal. It expands by 0.080 cm when its temperature is raised from 0°C to 100°C. Another rod of a different metal B having the same length expands by 0.040 cm for the same change in temperature. A third rod of the same length is composed of two parts, one of metal A and the other of metal B. This rod expands by 0.050 cm for the same change in temperature. The portion made of metal A has the length

### Choices

Choice (4) Response

a.

8 cm

b.

3 cm

c.

1 cm

d.

5 cm

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