Properties of Solids & LiquidsYoung's Modulus (NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics): Questions 6  10 of 13
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Question number: 6
» Properties of Solids & Liquids » Young's Modulus
Question
A steel wire is 6.0 m long and 2 mm in diameter. Young’s modulus of steel is 1.96 × 10 ^{11} N/m ^{2}. If a mass of 30 kg is suspended from it the elongation produced will be 
Choices
Choice (4)  Response  

a.  127 mm 

b.  2.54 mm 

c.  1.27 mm 

d.  1.91 mm 

Question number: 7
» Properties of Solids & Liquids » Young's Modulus
Question
Which of the following relations are false
(1)
(2)
(3)
(4)
Select the correct answers and mark it according to the following codes:
Choices
Choice (4)  Response  

a.  1 and 3 are correct 

b.  1, 2 and 3 are correct 

c.  2 and 4 are correct 

d.  1 and 2 are correct 

Question number: 8
» Properties of Solids & Liquids » Young's Modulus
Question
The Young’s modulus of steel is 2 × 10 ^{11} N/m ^{2} and its coefficient of linear expansion is 1.1 × 10 ^{5} per deg. The pressure to be applied to the ends of a steel cylinder to keep its length constant on raising its temperature by 100°C, will be 
Choices
Choice (4)  Response  

a.  1.8 × 10 ^{6} N/m ^{2} 

b.  5.5 × 10 ^{4} N/m ^{2} 

c.  2.0 × 10 ^{11 } N/m ^{2} 

d.  2.2 × 10 ^{8} N/m ^{2} 

Question number: 9
» Properties of Solids & Liquids » Young's Modulus
Question
Is longitudinal strain and Y its young’s modulus of elasticity then potential energy per unit volume will be
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 10
» Properties of Solids & Liquids » Young's Modulus
Question
A stress of 2 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.  0.0098 

b.  0.007 

c.  0.0028 

d.  0.0196 
