781 Petrol engine is a________________? Physics Medium Full question → A C.I engine B SI engine C IC engine D all the above
782 The purpose of flywheel in the engines is________________? Physics Medium Full question → A to smooth out the energy variation B to add more weight to engine to work it stable C to start engine D both A and B
783 For the successful operation of Heat engine which condition should be met ? Physics Medium Full question → A cyclic process B operated at certain temperature difference C both A and B D none of these
784 The work done in the isochoric process is________________? Physics Medium Full question → A constant B variable C zero D depends on situation
785 Adiabatic process is also called______________? Physics Medium Full question → A Heat exchange process B Heating process C Isentropic process D All of the above
786 In which process entropy remains constant________________? Physics Medium Full question → A isobaric B isochoric C adiabatic D isothermal
787 Average translational kinetic energy per molecule of an ideal gas is given by_____________? Physics Medium Full question → A 3NaT/2R B 2NaT/3 C 3RT/2Na D 3Na/2RT
788 Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________? Physics Medium Full question → A K = RNa B K = R/Na C K = Na/Ra D K = nRNa
789 Which of the following properties of molecules of a gas is same for all gases at particular temperature ? Physics Medium Full question → A momentum B mass C velocity D kinetic energy
790 Triple point of water is_____________________? Physics Medium Full question → A 273°C at 6.11 Kpa B 273K at 61.6 Kpa C 273.16°C at 0.611 Kpa D 273.16K at 750 Kpa
791 The distance between any two consecutive nodes or antinodes in a stationary wavelength (λ) is _________? Physics Medium Full question → A λ B λ/2 C λ/4 D λ/8
792 Two coherent sources of light produce interference (destructive) when the phase difference between them is _________? Physics Medium Full question → A π B 2π C π/2 D π/4
793 Mohus scale is used for to measure ____________? Physics Medium Full question → A Hardness B Humidity C Pressure D Temperature
794 The unit of force in CGS, system is __________? Physics Medium Full question → A Newton B Pound C Dyne D None of these
795 Matter itself has energy called ________? Physics Medium Full question → A Potential energy B Rest energy C Chemical energy D Nuclear energy
796 Kirchhoff’s 2nd rule is related to: ___________? Physics Medium Full question → A IR Drops B Battery emf C junction voltages D both “1” and “2”
797 The power is the dot product of ___________ quantities. Physics Medium Full question → A Force and time B Force and velocity C Force and speed D None of these
798 CGS system of units is also called __________? Physics Medium Full question → A Metric system B Metric or French system of units C Metric or British system of units D None of these
799 A person wears spectates with concave lenses. It means that normally (when not using glasses), the image of distant objects is focused in his eyes: Physics Medium Full question → A behind the retina B in front of the retina C on the retina D on the blind spot
800 A bird sitting on a high tension electric wire does not get electrocuted because: Physics Medium Full question → A Sit has high resistance B the body is earthed C it does not form a closed path for the flow of current D its feet are good insulators