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The readings of a constant volume gas thermometer at 0°C and 100°C are 40cm of mercury and 60 cm of mercury. If its reading at an unknown temperature is 100cm of mercury column, then the temperature is

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Important Questions on Thermal Properties of Matter

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Agniveer Vayu
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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 11 - Thermal Properties of Matter>Exercise>Q 4
The temperature at which Centigrade thermometer and Kelvin thermometer gives the same reading is,
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Agniveer Vayu
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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 11 - Thermal Properties of Matter>Exercise>Q 5
If the cold junction of a thermo-couple is kept at 0oC and the hot junction is kept at ToC then the relation between neutral temperature (Tn) and  temperature of inversion (Ti) is
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Agniveer Vayu
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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 11 - Thermal Properties of Matter>Exercise>Q 7
The temperature of a body on kelvin scale is found to be x K. When it is measured by Fahrenheit thermometer, it is found to be x° F, then the value of x is
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Agniveer Vayu
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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 11 - Thermal Properties of Matter>Exercise>Q 1
Two metal rods of the same length L have their coefficient of linear expansion in the ratio α1:α2=4:3.

If the temperature of the first rod is raised by 60oC, then to keep their final length equal, the temperature of the second rod must be increased by:
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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 11 - Thermal Properties of Matter>Exercise>Q 2
A pendulum clock (fitted with a small heavy bob that is connected with a metal rod) is 3 seconds fast each day at a temperature of 15oC and 2 seconds slow at a temperature of 30oC . The temperature at which it is designed to give the correct time is_____.
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Agniveer Vayu
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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 11 - Thermal Properties of Matter>Exercise>Q 4
At 300oC, the hole in a steel plate has a diameter of 0.99970 cm. A cylinder of diameter exactly 1 cm at 30oC is to be slide into the hole. To what temperature the plate must be heated. (Given: αsteel=1.1×10-5 oC-1 )
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Agniveer Vayu
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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 11 - Thermal Properties of Matter>Exercise>Q 5
A rod is acted by two equal forces as shown in the figure. The coefficient of thermal expansion of the rod is α and area of cross section is A . When the temperature the rod is increased by ΔT , the length of the rod does not change. The young's modulus Y will be.

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Agniveer Vayu
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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 11 - Thermal Properties of Matter>Exercise>Q 6
A copper rod of length l0 at 0° C is placed on a smooth surface. Now the rod is heated up to 100° C. Find the longitudinal strain developed. (Let, α= coefficient of linear expansion)