Properties of Solids & Liquids (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 170 - 172 of 190

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Question number: 170

» Properties of Solids & Liquids » Stress-Strain Relationship

MCQ▾

Question

A copper rod 2m long is stretched by 1mm. Strain will be -

Choices

Choice (4) Response

a.

5 × 10 -4, volumetric

b.

5 × 10 -4, longitudinal

c.

10 -4, volumetric

d.

5 × 10 -3, volumetric

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Question number: 171

» Properties of Solids & Liquids » Heat Transfer » Conduction

MCQ▾

Question

A 10 cm thick ice block is there on the surface of water in a lake. The temperature of air is - 10° C; how much time it will take to double the thickness of the block (L = 80 cal/g, K ice = 0.004 erg/s-k, ρ ice = 0.92 gm cm -3)

Choices

Choice (4) Response

a.

51.11 hours

b.

21 hour

c.

19.11 hours

d.

191 hours

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Question number: 172

» Properties of Solids & Liquids » Specific Heat Capacity

MCQ▾

Question

Heat is supplied to a certain homogenous sample of matter, at a uniform rate. Its temperature is plotted against time, as shown. Which of the following conclusions can be drawn?

(1) Its specific heat capacity is greater in the liquid state than in the solid state

(2) Its latent heat of vaporization is greater than its latent heat of fusion

(3) Its specific heat capacity is greater in the solid state than in the liquid state

(4) Its latent heat of vaporization is smaller than its latent heat or fusion

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

Choices

Choice (4) Response

a.

1,2 and 3 are correct

b.

1 and 2 are correct

c.

2 and 4 are correct

d.

1 and 3 are correct

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