The value of γ for diatomic gas is _______ ?
A. 1.4
B. 1.87
C. 1.67
D. γ = 1.3
PHYSICS MCQS
Physics MCQs here cover topics like Definition of Physics, Branches of Physics, Class 9, Class 10, Class 11, Class 12, SST test, and Everyday General Science MCQs. Physics MCQs for entry tests.
In which process all the heat supplied is converted into work done?
A. isobaric
B. isentropic
C. isothermal
D. isochoric
Performance of a refrigerator is described by _____ ?
A. coefficient of performance
B. efficiency
C. both A and B
D. not described
Which quantity is a state function ______ ?
A. volume
B. internal energy
C. heat supply
D. pressure
Petrol engine is a ______ ?
A. IC engine
B. C.I engine
C. SI engine
D. all the above
Purpose of flywheel in the engines is ______ ?
A. to add more weight to engine to work it stable
B. to start engine
C. to smooth out the energy variation
D. both A and B
For the successful operation of Heat engine which condition should be met?
A. operated at certain temperature difference
B. cyclic process
C. both A and B
D. None of them
Work done in the isochoric process is ______ ?
A. depends on situation
B. zero
C. constant
D. variable
Adiabatic process is also called ______ ?
A. Isentropic process
B. Heating process
C. Heat exchange process
D. None of them
Which of the following waves have smallest velocity in vacuum ?
A. Infra-Red
B. Micro
C. Sound
D. Ultraviolet