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Heat & Thermodynamics Test Online MCQs

Test Name Heat & Thermodynamics MCQs Test
Subject Physics
Test Type MCQs
Total Question 15
Total Marks 30
Total Time 15 Mints
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Get multiple choice questions of the physics subject topic Heat & Thermodynamics online. All the visitors should attempt these questions to prepare for the admission test, medical test, engineering and recruitment test. Heat & Thermodynamics MCQs Test Online being added below.

Heat & Thermodynamics Test Online MCQs


1. A black body is at a temperature 300 K. It emits energy at a rate, which is proportional to:


Question 1 of 15

2. The colour of a star indicates its:


Question 2 of 15

3. In an adiabatic change, the pressure and temperature of a monoatomic gas are related with relation as P ∞ TC, where C is equal to:


Question 3 of 15

4. An ideal gas at 27°C is compressed adiabatically to 8/27 its original volume [TVγ-1 = constant] and γ = 5/3, then the rise in temperature will be:


Question 4 of 15

5. Woolen clothes keep the body warm because the wool:


Question 5 of 15

6. A centigrade and Fahrenheit thermometers are dipped in boiling water. The water temperature is lowered until the Fahrenheit thermometer registers a temperature of 140° the fall of the temperature as registered by the centigrade thermometer is:


Question 6 of 15

7. Which one of the following is not a thermodynamical co-ordinate?


Question 7 of 15

8. Heat travels through vacuum by:


Question 8 of 15

9. A quantity of heat required to change the unit mass of a solid substance to its liquid state, while the temperature remains constant, is known as


Question 9 of 15

10. The density of a substance at 0°C is 10 g/cc and at 100°C, its density is 9.7 g/cc. The coefficient of linear expansion of the substance is


Question 10 of 15

11. During the adiabatic expansion of a gas the internal energy of a gas is found to decrease by 2 joule. The work done on gas during the process will be equal to:


Question 11 of 15

12. The sun emits a light with maximum wave length 510 nm while another star emits a light with maximum wavelength of 350 nm. The ratio of surface temperature of sun and the star will be:


Question 12 of 15

13. Fraunh offer line of the solar system is an example of:


Question 13 of 15

14. When a solid is converted into a gas, directly by heating then this process is known as:


Question 14 of 15

15. The latent heat of vaporization water is 2240 J. If the work done in the process of vaporization of 1g is 168 J, then increase in internal energy is:


Question 15 of 15


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