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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
The values of the specific heat of the gas during adiabatic change isA. infiniteB. finiteC. zeroD. any values from zero to infinity |
| Answer» Correct Answer - C | |
| 102. |
A perfectly black body in one whose emissivity isA. zeroB. unityC. maximumD. minimum |
| Answer» Correct Answer - B | |
| 103. |
The gases haveA. one specific heatB. three specific heatsC. two specific heatsD. infinite specific heats |
| Answer» Correct Answer - C | |
| 104. |
If 3 kg of mass is converted into energy. Energy released isA. `9xx10^(8)J`B. `9xx10^(16)J`C. `27xx10^(8)J`D. `27xx10^(16)J` |
| Answer» Correct Answer - D | |
| 105. |
Emissivity of perectly black body isA. 1B. 2C. 5D. 0 |
| Answer» Correct Answer - A | |
| 106. |
The number of degres of freedom of diatomic gas areA. 3B. 5C. 6D. 2 |
| Answer» Correct Answer - B | |
| 107. |
The solid and liquid have only one specific heat because of there isA. one specific heatB. three specific heatsC. two specific heatsD. infinite specific heats |
| Answer» Correct Answer - A | |
| 108. |
A unit mass of solid converted to liquid at its melting point. Heat is required for this process isA. specific heatB. latent heat of vaporisationC. latent heat of fusionD. external latent heat |
| Answer» Correct Answer - C | |
| 109. |
The solid and liquid have only one specific heat because of there isA. no considerable increase in pressure and volumeB. considerable increase in volume andd pressureC. considerable increase in volume onlyD. considerable increase in pressure only |
| Answer» Correct Answer - A | |
| 110. |
Measurement of temperature based onA. Zeroth law of ThermodynamicsB. First law of thermodynamicsC. second law of thermodynamicsD. all of above |
| Answer» Correct Answer - A | |
| 111. |
Mercury is used as thermometer liquid. Which among the following properties of mercury is used in this?A. it has low specific heatB. it does not wet the glass tubeC. it is opaque and brightD. all the above |
| Answer» Correct Answer - C | |
| 112. |
The temperature of the sun is measured withA. Resistance thermometerB. Vapour pressure thermometerC. Radiation pyrometerD. Gas themometer |
| Answer» Correct Answer - C | |
| 113. |
Heat added to a systemm is equal toA. a change in internal kinetic energyB. a change in internal potential energyC. the work done by itD. all the above |
| Answer» Correct Answer - D | |
| 114. |
Which of the following is the unit of specific heatA. J kg/`.^(@)C`B. J/kg`.^(@)C`C. kg`.^(@)C`/JD. J kg/`.^(@)C^(2)` |
| Answer» Correct Answer - B | |
| 115. |
Specific heat at constant pressure `C_P` of a gasA. more than the specific heat at constant volume `(C_(V))`B. less then the specific heat at constant volume `(C_(V))`C. equal to the specific heat at constant volume `(C_(V))`D. may be more or less than specific heat at constant volume `(C_(V))` |
| Answer» Correct Answer - A | |
| 116. |
A gas that has 3 degrees of freedom isA. monoatomicB. diatomicC. triatomicD. polyatomic |
| Answer» Correct Answer - A | |
| 117. |
Newton’s law of cooling, holds good only if the temperature difference between the body and the surroundings isA. less than `20^(@)C`B. more than `10^(@)C`C. less than `100^(@)C`D. more than `100^(@)C` |
| Answer» Correct Answer - A | |
| 118. |
The temperature of ozone in a vessel, is raised by `1^(@)C` at constant volume. Part of total heat supplied to the gas may be taken as translational and rotational energies. Their respective shares areA. 50%,50%B. 100%,0%C. 0%,100%D. 40%,60% |
| Answer» Correct Answer - A | |
| 119. |
Heat is absorbed by a body. But its temperature does not raised. Which of the following statement explains the phenomena?A. only kinetic energy of vibration increaseB. only potential energy of inter molecular force fields increasesC. the internal energy is not increasesD. increasein kinetic energy is balanced by decrease in its potential energy |
| Answer» Correct Answer - B | |
| 120. |
Whicih of the following in solids, liquids and gases has largest specific heat?A. copperB. waterC. hydrogenD. mercury |
| Answer» Correct Answer - C | |
| 121. |
Heat is kinetic energy of moleculeA. kinetic energy of moleculeB. potential and kinetic energy of moleculesC. energy in transitD. work done on the system |
| Answer» Correct Answer - C | |
| 122. |
Average kinetic energy of molecules isA. directly proportional to square root of temperatureB. diretctly proportional to absolute temperatureC. independent of absolute temperatureD. inversely proportional to absolute temperature |
| Answer» Correct Answer - B | |
| 123. |
Average kinetic energy of a gas molecule isA. inverserly proportional to the square of its absolute temperatureB. directly proportional to square root of its absolute temperatureC. directly proportional to its absolute temperatureD. directly proportional to square of absolute temperature |
| Answer» Correct Answer - C | |
| 124. |
Molecules of a gas behave likeA. elastic and rigid spheresB. in elastic and nonrigid spheresC. inelastic and rigid spheresD. perfectly elestic and nonrigid spheres |
| Answer» Correct Answer - A | |
| 125. |
The first evidence in favour of the molecular structure of gas come from the experimental observation ofA. brownian movement of colloidal particleB. tracks of particles in cloud chamberC. motion of molecules in a conductionD. gas equation |
| Answer» Correct Answer - A | |