Properties of Solids & Liquids-Young's Modulus (NEET Physics): Questions 11 - 13 of 13

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Question number: 11

» Properties of Solids & Liquids » Young's Modulus

MCQ▾

Question

A steel wire is 4.0 m long and 2 mm in diameter. Young’s modulus of steel is 1.96 x 10 11 N/m 2. If a mass of 20 kg is suspended from it the elongation produced will be -

Choices

Choice (4) Response
a.

0.64 mm

b.

127 mm

c.

2.54 mm

d.

0.27 mm

Question number: 12

» Properties of Solids & Liquids » Young's Modulus

MCQ▾

Question

A stress of l kg/mm 2 is applied on a wire. If the modulus of elasticity of the wire is 10 10 dyne/cm 2, then the percentage increase in the length of the wire will be

Choices

Choice (4) Response
a.

98

b.

9.8

c.

0.0098

d.

0.007

Question number: 13

» Properties of Solids & Liquids » Young's Modulus

MCQ▾

Question

For a given material, the Young’s modulus is 2.4 times that of rigidity modulus. Its Poisson’s ratio is

Choices

Choice (4) Response
a.

2

b.

0.2

c.

1.02

d.

1.2

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