HARD
Physics
IMPORTANT
Earn 100

A one litre glass flask contains some mercury. It is found that at different temperatures the volume of air inside the flask remains the same. What is the volume of mercury in this flask if coefficient of linear expansion of glass is 9×10-6 °C-1 while of volume expansion of mercury is 1.8×10-4 °C-1:

50% studentsanswered this correctly

Important Questions on Thermometry, Thermal Expansion and Calorimetry

HARD
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 1 - Thermometry, Thermal Expansion and Calorimetry>Exercises>Q 20

A glass flask is filled up to a mark with 50 cc of mercury at 18°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-1∘ and coefficient of real expansion of mercury is 180×10-6 C-1∘.

MEDIUM
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 1 - Thermometry, Thermal Expansion and Calorimetry>Exercises>Q 21

The coefficient of volumetric expansion of mercury is 18×10-5/C∘. A thermometer bulb has a volume 10-6 m3 and cross section of stem is of 0.004 cm2. Assuming that bulb is filled with mercury at 0°C, the length of the mercury column at 100°C is

EASY
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 1 - Thermometry, Thermal Expansion and Calorimetry>Exercises>Q 22
The coefficient of apparent expansion of mercury in a glass vessel is 153×10-6 C-1o and that in a steel vessel is 144×10-6 C-1o if α for steel is 12×10-6 C-1o , then that of glass is
HARD
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 1 - Thermometry, Thermal Expansion and Calorimetry>Exercises>Q 23
A glass flask of volume one litre at 0°C is filled, level full of mercury at this temperature. The flask and mercury are now heated to 100°C. How much mercury will spill out, if the coefficient of volume expansion of mercury is 1.82×10-4 C-1∘ and linear expansion of glass is 0.1×10-4 C-1∘ respectively?
EASY
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 1 - Thermometry, Thermal Expansion and Calorimetry>Exercises>Q 24
A metal ball immersed in alcohol weighs w1 at 0°C and w2 at 59°C. The coefficient of cubical expansion of the metal is less than that of alcohol. Assuming that the density of the metal is large compared to that of alcohol, it can be shown that
MEDIUM
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 1 - Thermometry, Thermal Expansion and Calorimetry>Exercises>Q 25
An iron tyre is to be fitted on to a wooden wheel 1 m in diameter. The diameter of tyre is 6 mm smaller than that of wheel. The tyre should be heated so that its temperature increases by a minimum of (the coefficient of cubical expansion of iron is 3.6×10-5 C-1o)
MEDIUM
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 1 - Thermometry, Thermal Expansion and Calorimetry>Exercises>Q 26
A steel scale measures the length of a copper wire as 80.0 cm, when both are at 20 °C (the calibration temperature for scale). What would be the scale reading for the length of the wire when both are at 40 °C? (Given, αsteel=11×10-6 °C-1 and αcopper=17×10-6 °C-1)
HARD
Physics
IMPORTANT
PHYSICS FOR JOINT ENTRANCE EXAMINATION WAVES AND THERMODYNAMICS>Chapter 1 - Thermometry, Thermal Expansion and Calorimetry>Exercises>Q 27
A piece of metal weighs 46 gm in air. When it is immersed in a liquid of specific gravity 1.24 at 27°C, it weighs 30 gm. When the temperature of the liquid is raised to 42°C, the metal piece weight 30.5 gm. If the specific gravity of the liquid at 42°C is 1.20, then, the linear expansion of the metal will be,