Gamma Question Bank for Medical Physics>Chapter 9 - Mechanical Properties of Solids>Assignment>Q 21

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The length of wire, when $M_{1}$ is hung from it, is $I_{1}$ and is $I_{2}$ with both $M_{1}$ and $M_{2}$ hanging. The natural length of wire is

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Important Questions on Mechanical Properties of Solids

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Gamma Question Bank for Medical Physics>Chapter 9 - Mechanical Properties of Solids>Assignment>Q 22

The substances having very short plastic region are

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Gamma Question Bank for Medical Physics>Chapter 9 - Mechanical Properties of Solids>Assignment>Q 23

Due to addition of impurities, the modulus of elasticity

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Gamma Question Bank for Medical Physics>Chapter 9 - Mechanical Properties of Solids>Assignment>Q 24

A load of

2 kg

produces an extension of

1 mm

in a wire of

3 m

in length and

1 mm

in diameter. The Young's modulus of wire will be

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Gamma Question Bank for Medical Physics>Chapter 9 - Mechanical Properties of Solids>Assignment>Q 25

Young's modulus depends upon

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Gamma Question Bank for Medical Physics>Chapter 9 - Mechanical Properties of Solids>Assignment>Q 1

Young's modulus of a perfectly rigid body is _____.

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Gamma Question Bank for Medical Physics>Chapter 9 - Mechanical Properties of Solids>Assignment>Q 27

A spherical ball contracts in volume by

0.01 %

when subjected to a normal uniform pressure of

100 atm

. The Bulk modulus of its material is

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Gamma Question Bank for Medical Physics>Chapter 9 - Mechanical Properties of Solids>Assignment>Q 28

A metallic rod of length

l

and cross-sectional area

A

is made of a material of Young's modulus

Y

. If the rod is elongated by an amount

y

, then the work done is proportional to

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Gamma Question Bank for Medical Physics>Chapter 9 - Mechanical Properties of Solids>Assignment>Q 29

If the Bulk modulus of lead is

8.0 \times 10^{9} N m^{- 2}

and the initial density of the lead is

11.4 g {cc}^{- 1}

, then under the pressure of

2.0 \times 10^{8} N m^{- 2}

, the density of the lead is