ECAT Pre Computer Science Chapter 11 online mcq test with answers for Physics chapter 11 (Heat & Thermodynamics)

ECAT Physics Chapter 11 Heat & Thermodynamics Online Test

Sr. #	Questions	Answers Choice
1	Electromagnetic waves emitted by hot bodies are called:	Photoelectrons Alpha rays Thermal radiation None of these
2	The nature of thermal radiation is similar to:	Ultraviolet rays Light rays Both of them None of these
3	The relationship between Boltzmann constant k with R and N_Ais given as:	k = RN<sub>A</sub> k =R/N<sub>A</sub> k = NR/N<sub>A</sub> None of these
4	At constant temperature, if the density of the gas is increased, its pressure will:	One kg of a substance Unit volume of a substance One mole of a substance None of these
5	The motion of molecules in gases is:	Orderly Random Circular All of these
6	In an ideal gas, the molecules have:	Kinetic energy only Potential energy only Both KE and PE None of these
7	Which of the following does not have the same units:	Work Heat Kinetic energy Power
8	The temperature scale approved in SI units is:	Celsius scale Kelvin scale Fehrenheit scale None of these
9	In the theory of dimensional analysis, heat may be properly represented by:	ML<sup>2</sup>T<sup>-2</sup> MT<sup>-2</sup> ML<sup>-1</sup>T<sup>-1</sup> None of these
10	The only significant motion possessed by the mono-atomic gas represented is:	Translatory Rotatory Vibratory None of these
11	At the constant temperature, if the value of a given mass of a gas is double, then the density of gas becomes:	Double Remains constant Half None of these
12	Real gases strictly obey gas law at:	High pressure and low temperatures Low pressures and high temperatures High pressures and high temperatures None of these
13	A gas which strictly obeys the gas laws under all conditions of temperature and pressure is called:	Ideal gas Inert gas Real gas None of these
14	When two objects come to common temperature, the body is said to be in:	Static equilibrium Dynamic equilibrium Thermal equilibrium None of these
15	Absolute zero is considered as that temperature at which:	All liquid become gases All gases become liquid Water freezes None of these

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