Reciprocal of Bulk modulus - Compressibility

Change in shape - Longitudinal strain

Change in volume - Shear strain

It is given by the ratio of pressure applied to the corresponding relative decrease in the volume of the material. Mathematically, it is represented as follows: B = Δ P / ( Δ V / V ) Where: B : Bulk modulus Δ P : change of the pressure or force applied per unit area on the material Δ V : change of the volume of the material due to the compression V : Initial volume of the material.

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

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Young's modulus depends upon

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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 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

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Gamma Question Bank for Medical Physics>Chapter 9 - Mechanical Properties of Solids>Assignment>Q 30

When temperature of a gas is

20 ° C

and pressure is changed from

P_{1} = 1.01 \times 10^{5} P a t o P_{2} = 1.165 \times 10^{5} P a

then the volume changed by

10 %

. The bulk modulus is:

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Gamma Question Bank for Medical Physics>Chapter 9 - Mechanical Properties of Solids>Assignment>Q 31

The stress versus strain graph for wires of two materials $A$ and $B$ are as shown in the figure. If $Y_{A}$ and $Y_{B}$ are the Young's moduli of the materials, then

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