Properties of Solids & Liquids (KVPY (Kishore Vaigyanik Protsahan Yojana) StreamSA (Class 11) Physics): Questions 14  17 of 27
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Question number: 14
» Properties of Solids & Liquids » Bernoulli's Principle and Its Applications
Question
A liquid of density 0.9 is flowing through horizontal tube of varying crosssectional area. The diameter at point A is 12 cm and diameter at point B is 6 cm in tube. The manometer shows 16 cm pressure between A and B in two limbs. So what is the rate of flow of liquid in the tube?
Choices
Choice (4)  Response  

a.  5562 

b.  5030 

c.  5392 

d.  5782 

Question number: 15
» Properties of Solids & Liquids » Specific Heat Capacity
Question
Five identical blocks of metal are at 25^{0}C, 52ºC, 60^{0} C, 78^{0} C and 90ºC respectively. The specific heat of the material of the five blocks increases with temperature. Which of the following is true about the final temperature T_{f} when all five blocks are brought into contact? (Assuming that no heat is lost to the surroundings)
Choices
Choice (4)  Response  

a.  T_{f} will be more than 56ºC 

b.  T_{f} can be either more than or less than 56ºC depending on the precise variation of the specific heat with temperature 

c.  T_{f} will be 56ºC 

d.  T_{f} will be less than 56ºC 

Question number: 16
» Properties of Solids & Liquids » Latent Heat
Question
An ice ball falls from a height h and melts completely. Assuming that only onefifth of the heat generated is absorbed by the ice, calculate the value of h.
(Latent heat of fusion of ice = 3.4⨯10^{5} JKg^{1} and g = 10 Nkg^{1})
Choices
Choice (4)  Response  

a.  160 

b.  165 

c.  170 

d.  155 

Question number: 17
» Properties of Solids & Liquids » Viscosity
Question
A small metal ball of diameter 4 mm and density 11.6 g cm^{3} is dropped in glycerin of density 1.5 g cm^{3}. The ball attains a terminal velocity of 980 cm s^{1}. The coefficient of viscosity of glycerin is,
Choices
Choice (4)  Response  

a.  4.9 poise 

b.  980 poise 

c.  16.49 poise 

d.  9.8 poise 
