The isothermal elasticity of a gas is equal to

(1) Density                                     

(2) Volume

(3) Pressure                                    

(4) Specific heat

Subtopic:  Stress - Strain |
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The adiabatic elasticity of a gas is equal to
1. γ × density
2. γ × volume
3. γ × pressure
4. γ × specific heat

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The specific heat at constant pressure and at constant volume for an ideal gas are Cp and Cv and its adiabatic and isothermal elasticities are E andEθ  respectively. The  ratio of E to Eθ is

(1) Cv/Cp

(2) Cp/Cv

(3) CpCv

(4) 1/CpCv

Subtopic:  Types of Processes |
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If the volume of the given mass of a gas is increased four times and the temperature is raised from 27°C to 127°C. The isothermal elasticity will become

(1) 4 times                               

(2) 1/4 times

(3) 3 times                               

(4) 1/3 times

Subtopic:  Types of Processes |
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The compressibility of water is 4×10-5 per unit atmospheric pressure. The decrease in volume of 100 cubic centimeter of water under a pressure of 100 atmosphere will be -

(a) 0.4 cc           (b) 4×10-5cc

(c) 0.025 cc       (d) 0.004 cc 

Subtopic:  Shear and bulk modulus |
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If a rubber ball is taken at the depth of 200 m in a pool, its volume decreases by 0.1%. If the density of the water is 1×103kg/m3 and g=10m/s2, then the volume elasticity in  will be

(1) 108                                       

(2) 2×108

(3)109                                         

(4) 2×109

Subtopic:  Shear and bulk modulus |
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When a pressure of 100 atmosphere is applied on a spherical ball, then its volume reduces by 0.01%. The bulk modulus of the material of the rubber in dyne / cm2 is:

(1) 10×1012                               

(2) 100×1012

(3) 1×1012                                 

(4) 20×1012

Subtopic:  Shear and bulk modulus |
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A uniform cube is subjected to volume compression. If each side is decreased by 1%, then bulk strain is

(1) 0.01                             

(2) 0.06

(3) 0.02                             

(4) 0.03

Subtopic:  Shear and bulk modulus |
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A ball falling in a lake of depth 200 m shows 0.1% decrease in its volume at the bottom. What is the bulk modulus of the material of the ball

(1) 19.6×108N/m2               

(2) 19.6×10-10N/m2

(3) 19.6×1010N/m2               

(4) 19.6×10-8N/m2

Subtopic:  Shear and bulk modulus |
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The Bulk modulus for an incompressible liquid is

(1) Zero                                           

(2) Unity

(3) Infinity                                       

(4) Between 0 to 1

Subtopic:  Shear and bulk modulus |
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