Properties of Solids & Liquids-Thermal Expansion (NEET Physics): Questions 25 - 28 of 32

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Question number: 25

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

The temperature of equal masses of three different liquids A, B and C are 12 °C, 19 °C and 28°C respectively. The temperature when A and B are mixed is 26°C and who and C are mixed is 32 °C. The temperature when A and C are mixed is

Choices

Choice (4) Response

a.

20.2°C

b.

22°C

c.

25.86°C

d.

18.2°C

Question number: 26

» 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 / 0C. If a for steel is 18 × 10 -6 / 0 C, then that of glass is

Choices

Choice (4) Response

a.

19×106/0C

b.

15.66×106/0C

c.

27×106/0C

d.

36×106/0C

Question number: 27

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

An iron tire is to be fitted on to a wooden wheel 2 m in diameter. The diameter of tire is 4mm smaller than that of wheel. The tire should be heated so that its temperature increases by a minimum of (The coefficient of cubical expansion of iron is 3.6 ×10 -5 /°C)

Choices

Choice (4) Response

a.

1000°C

b.

500°C

c.

167°C

d.

334°C

Question number: 28

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

The temperature of equal masses of three different liquids A, B and C are 12°C, 19 0 C and 28°C respectively. The temperature when A and B are mixed is 16°C and who and C are mixed is 23 0 C. The temperature when A and C are mixed is

Choices

Choice (4) Response

a.

25.2°C

b.

22°C

c.

20.2°C

d.

18.2°C

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