11)

Hooke’s law is an

Class 11 Physics

A)

Attractive

B)

Inverse square law

C)

Universal law

D)

Empirical law

12)

The stress corresponding to yield point is called as

Class 11 Physics

A)

Yield strength

B)

Yield strain

C)

Yield stress

D)

None

13)

The substances like tissue of aorta, rubber which can be stretched to cause large strain are called

Class 11 Physics

A)

Both a and b

B)

Elastomers

C)

Plastomers

D)

None

14)

The ratio of stress and strain is called as

Class 11 Physics

A)

Elastic constant

B)

Modulus of elasticity

C)

Young’s modulus

D)

None

15)

The ratio of tensile stress to longitudinal strain is called as

Class 11 Physics

A)

Elastic constant

B)

Modulus of elasticity

C)

Young’s modulus

D)

None

16)

The SI unit of Young’s modulus is

Class 11 Physics

A)

Both a and b

B)

Pascal

C)

N/m2

D)

None

17)

The value of Young’s modulus is maximum for

Class 11 Physics

A)

Steel

B)

Copper

C)

Iron

D)

Aluminium

18)

The SI unit of shear modulus is

Class 11 Physics

A)

Both a and b

B)

Pascal

C)

N/m2

D)

None

19)

The shear modulus for steel in the order of 109 is

Class 11 Physics

A)

10N/m2

B)

150N/m2

C)

84N/m2

D)

None

20)

Shear modulus is maximum for

Class 11 Physics

A)

Tungsten

B)

Iron

C)

Steel

D)

Wood