Properties of Solids & Liquids (NEET Physics): Questions 107 - 111 of 188

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Question number: 107

» Properties of Solids & Liquids » Elastic Behavior

MCQ▾

Question

The force required to separate two glass plates of area 10 -2 m 2 with a film of water 0.05 mm thick between them, is (Surface tension of water is 70 × 10 -3 N/m)

Choices

Choice (4) Response

a.

50 N

b.

14 N

c.

28 N

d.

38 AT

Question number: 108

» Properties of Solids & Liquids » Heat Transfer » Convection

MCQ▾

Question

Two rods A and B are of equal lengths. Their ends are kept between the same temperature and their areas of cross-sections are A 1 and A 2 and thermal conductivities K 1 and K 2. The rate of heat transmission in the two rods will be equal, if

Choices

Choice (4) Response

a.

K1A12=K2A22

b.

K1A1=K2A2

c.

K1=K2

d.

K1A2=K2A1

Question number: 109

» Properties of Solids & Liquids » Terminal Velocity

Assertion-Reason▾

Assertion (Ꭺ)

Bernoulli’s theorem holds for incompressible, non-viscous fluids.

Reason (Ꭱ)

The factor v22g is called velocity head.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Ꭺ is false but Ꭱ is true

c.

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

d.

Both Ꭺ and Ꭱ are false

Passage

Read the passage given below and answer the questions that follows:

In a thermally insulated tube of cross sectional area 4 cm 2 a liquid of thermal expansion coefficient 10 -3 K -1 is flowing. Its velocity at the entrance is 0.1 m/s. At the middle of the tube a heater of a power of 10 kW is heating the liquid. The specific heat capacity of the liquid is 1.5 kJ/ (kg K), and its density is 1500 kg/m 3 at the entrance.

Question number: 110 (1 of 3 Based on Passage) Show Passage

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

The rise in temperature of the liquid as it pass through the tube is

Choices

Choice (4) Response

a.

(19)0C

b.

(5009)0C

c.

(10009)0C

d.

Question does not provide sufficient data or is vague

Question number: 111 (2 of 3 Based on Passage) Show Passage

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

What is the density of liquid at the exit?

Choices

Choice (4) Response

a.

1350kgm3

b.

1400kgm3

c.

1450kgm3

d.

None of the above

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