Properties of Solids & Liquids (NEET Physics): Questions 59 - 63 of 188

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Question number: 59

» Properties of Solids & Liquids » Elastic Behavior

MCQ▾

Question

A 4.0 m long copper wire of cross sectional area 1.2 cm 2 is stretched by a force of 4.8 × 10 3 N stress will be -

Choices

Choice (4) Response
a.

4.0 × l0 7 N/mm 2

b.

4.0 × l0 7 KN/m 2

c.

4.0 × l0 7 N/m 2

d. None of the above

Question number: 60

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

The apparent coefficient of expansion of a liquid when heated in a copper vessel is C and when heated in a silver vessel is S. If A is the linear coefficient of expansion of copper, then the linear coefficient of expansion of silver

Choices

Choice (4) Response
a.

CS+3A3

b.

C+S3A3

c.

S+3AC3

d.

C+3AS3

Question number: 61

» Properties of Solids & Liquids » Thermal Expansion

MCQ▾

Question

An iron tire is to be fitted on to a wooden wheel 1 m in diameter. The diameter of tire is 6mm 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.

500°C

b.

167°C

c.

334°C

d.

1000°C

Question number: 62

» Properties of Solids & Liquids » Modulus of Rigidity

MCQ▾

Question

The compressibility of water is 5 × 10 -10 m 2 /N. If it is subjected to a pressure of 15 MPa the fractional decrease in volume will be -

Choices

Choice (4) Response
a.

7.5 ×10 -3

b.

1.5 × 10 -2

c.

5.6 × 10 -4

d.

3.3 × 10 -5

Question number: 63

» Properties of Solids & Liquids » Hooke's Law

MCQ▾

Question

A wire of length lm and area of cross section 4 × 10 -8 m 2 increases in length by 0.2 cm when a force of 16 N is applied. Value of Y for the material of the wire will be

Choices

Choice (4) Response
a.

2 × l0 11 N/mm 2

b.

2 × 10 11 kg/m 2

c.

2 × l0 6 N/m 2

d.

2 × 10 11 N/m 2

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