Properties of Solids & Liquids (NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics): Questions 62  66 of 190
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Question number: 62
» Properties of Solids & Liquids » Modulus of Rigidity
Question
The compressibility of water is 5 × 10 ^{10} m ^{2} /N. If it is subjected to a pressure of 15 MPa the fractional decrease in volume will be 
Choices
Choice (4)  Response  

a.  7.5 ×10 ^{3} 

b.  1.5 × 10 ^{2} 

c.  5.6 × 10 ^{4} 

d.  3.3 × 10 ^{5} 

Question number: 63
» Properties of Solids & Liquids » Hooke's Law
Question
A wire of length lm and area of cross section 4 × 10 ^{8} m ^{2 } increases in length by 0.2 cm when a force of 16 N is applied. Value of Y for the material of the wire will be
Choices
Choice (4)  Response  

a.  2 × l0 ^{11} N/mm ^{2} 

b.  2 × 10 ^{11} kg/m ^{2} 

c.  2 × l0 ^{6 } N/m ^{2} 

d.  2 × 10 ^{11 } N/m ^{2} 

Question number: 64
» Properties of Solids & Liquids » Application of Surface Tension
Question
The temperature at which the surface tension of water is zero
(1) 370° C
(2) 0° C
(3) Slightly less than 647 K
(4) 277 K
select the correct answers and mark it according to the following codes:
Choices
Choice (4)  Response  

a.  2 and 4 are correct 

b.  1,2 and 3 are correct 

c.  1 and 2 are correct 

d.  1 and 3 are correct 

Question number: 65
» Properties of Solids & Liquids » Elastic Behavior
Question
The work done in increasing the length of a one meter long wire of crosssectional area 1mm ^{2} through 1mm will be
(Y = 3 × 10 ^{11 } N/m ^{2})
Choices
Choice (4)  Response  

a.  10 J 

b.  0.1 J 

c.  250 J 

d.  0.15 J 

Question number: 66
» Properties of Solids & Liquids » Latent Heat
Question
Assertion (Ꭺ)
Latent heat of fusion of ice is 336000 J kg ^{1}
Reason (Ꭱ)
Latent heat refers to change of state without any change in temperature.
Choices
Choice (4)  Response  

a.  Both Ꭺ and Ꭱ are false 

b.  Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ 

c.  Ꭺ is false but Ꭱ is true 

d.  Ꭺ is true but Ꭱ is false 
