Properties of Solids & Liquids (NEET Physics): Questions 39  44 of 190
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Passage
Read the passage given below and answer the questions that follows:
A brass ball of mass 100 gm is heated to 100°C and then dropped into 200 gm of turpentine in a calorimeter at 15°C. The final temperature is found to be 23°C. Take specific heat of brass as 0.092 cal/gm°C and water equivalent of calorimeter as 4 gm.
Question number: 39 (3 of 3 Based on Passage) Show Passage
» Properties of Solids & Liquids » Heat Transfer » Conduction
Question
Heat lost by the ball is approximately
Choices
Choice (4)  Response  

a.  710 cal 

b.  810 cal 

c.  610 cal 

d.  510 cal 

Question number: 40
» Properties of Solids & Liquids » Thermal Expansion
Question
The real coefficient of volume expansion of glycerin is 0.000977 per °C and linear coefficient of expansion of glass is 0.000007 per °C. Then the apparent volume coefficient of expansion of glycerin is
Choices
Choice (4)  Response  

a.  0.000573 per °C 

b.  0.000237 per °C 

c.  0.000666 per °C 

d.  0.000956 per °C 

Question number: 41
» Properties of Solids & Liquids » StressStrain Relationship
Question
A wire of length lm is stretched by a force of 15 N. The area of crosssection of the wire is 2 × 10 ^{6} m ^{2} and Y is 2 × l0 ^{6} N/m ^{2}. Increase in length of the wire will be 
Choices
Choice (4)  Response  

a.  3.75 × 10 ^{5} m 

b.  4.45 × 10 ^{5} m 

c.  2.25 × 10 ^{5} m 

d.  Question does not provide sufficient data or is vague 

Question number: 42
» Properties of Solids & Liquids » Young's Modulus
Question
For a given material, the Young’s modulus is 2.8 times that of rigidity modulus. It’s Poisson’s ratio is
Choices
Choice (4)  Response  

a.  2 

b.  0.4 

c.  1.02 

d.  0.2 

Question number: 43
» Properties of Solids & Liquids » Thermal Expansion
Question
Flask is filled up to a mark with 50 cc of mercury at 8°C. If the flask and contents are heated to 38°C, how much mercury will be above the mark? (α for glass is 9 × 10 ^{6} /°C and coefficient of real expansion of mercury is 180 × 10 ^{6})
Choices
Choice (4)  Response  

a.  0.05 

b.  0.85 cc 

c.  0.46 cc 

d.  0.153 cc 

Question number: 44
» Properties of Solids & Liquids » Latent Heat
Question
A lead bullet at 27° C just n tits when, stopped by an obstacle. Assuming that 25 % of heat is absorbed by the obstacle, then the velocity of the bullet at the time of striking (M. P. of lead = 327°C, specific heat of lead = 0.03 cal/gm °C, latent heat of fusion of lead = 6 cal/gm and J = 4.2 joule/cal)
Choices
Choice (4)  Response  

a.  307.5 m/sec 

b.  1230 m/sec 

c.  410 m/sec 

d.  Question does not provide sufficient data or is vague 
