Properties of Solids & Liquids-Thermal Expansion (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 12 - 15 of 32

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Question number: 12

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

Density of a substance at 0°C is 10 gm/cc and at 100°C, its density is 7.7 gm/cc. The coefficient of linear expansion of the substance will be

Choices

Choice (4) Response

a.

Equation 10 2

b.

10 -2

c.

Equation 10 -3

d.

10 -4

Question number: 13

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

3 kg of ice at - 20°C is mixed with 10 kg of water at 20°C in an insulating vessel having a negligible heat capacity. Calculate the final mass of water remaining in the container. It is given that the specific heats of water and ice are 1 kcal/kg/°C and 0.5 kcal/kg/°C while the latent heat of fusion of ice is 80 kcal/kg

Choices

Choice (4) Response

a.

15 kg

b.

12.125 kg

c.

47.5 kg

d.

6.435 kg

Question number: 14

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

A rod of length 20 cm is made of metal. It expands by 0.075 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 0.045 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 0.060 cm for the same change in temperature. The portion made of metal A has the length

Choices

Choice (4) Response

a.

10 cm

b.

15 cm

c.

18 cm

d.

20 cm

Question number: 15

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

Density of a substance at 0°C is 10 gm/cc and at 100°C, its density is 9.7 gm/cc. The coefficient of linear expansion of the substance will be

Choices

Choice (4) Response

a.

10 2

b.

10 -3

c.

10 -4

d.

10 -2

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