Properties of Solids & LiquidsYoung's Modulus (NEET (NTANational Eligibility cum Medical Entrance Test) Physics): Questions 11  13 of 13
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Question number: 11
» Properties of Solids & Liquids » Young's Modulus
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
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
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 
