Properties of Solids & LiquidsThermal Expansion (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 4  7 of 32
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2142 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 550.00 or
Question number: 4
» Properties of Solids & Liquids » Thermal Expansion
Question
A piece of metal weight 40 gm in air, when it is immersed in the liquid of specific gravity 1.24 at 27 °C it weighs 25 gm. When the temperature of liquid is raised to 42°C the metal piece weighs 20gm, specific gravity of the liquid at 42°C is 1.20, then the linear expansion of the metal will be
Choices
Choice (4)  Response  

a.  2.6 × 10 ^{3} / ^{o} C 

b.  8.3 × 10 ^{3} /°C 

c.  3.316 × 10 ^{2} /°C 

d.  Question does not provide sufficient data or is vague 

Question number: 5
» Properties of Solids & Liquids » Thermal Expansion
Question
The real coefficient of volume expansion of glycerin is 0.000597 per °C and linear coefficient of expansion of glass is 0.000009 per °C. Then the apparent volume coefficient of expansion of glycerin is
Choices
Choice (4)  Response  

a.  0.00027 per °C 

b.  0.00057 per °C 

c.  0.000558 per °C 

d.  0.00066 per °C 

Question number: 6
» Properties of Solids & Liquids » Thermal Expansion
Question
2 kg of ice at  20°C is mixed with 5 kg of water at 20°C in an insulating vessel having a negligible heat capacity. Calculate the final mass of water remaining in the container. It is given that the specific heats of water and ice are 1 kcal/kg/°C and 0.5 kcal/kg/°C while the latent heat of fusion of ice is 80 kcal/kg
Choices
Choice (4)  Response  

a.  4 kg 

b.  7 kg 

c.  2kg 

d.  6 kg 

Question number: 7
» Properties of Solids & Liquids » Thermal Expansion
Question
The coefficient of volumetric expansion of mercury is 18 × 10 ^{5} / ^{o} C. A thermometer bulb has a volume 10 ^{6} m ^{3} and cross section of stem is 0.006 cm ^{2}. Assuming that bulb is filled with mercury at 0°C then the length of the mercury column at 100°C is
Choices
Choice (4)  Response  

a.  9.2 mm 

b.  0.03 m 

c.  4.5 cm 

d.  7.4 m 
