Divergence of a vector at a point in a vector field is _____ quantity.
A. A vector
B. A scalar
C. Both A & B
D. None of these
Physics Lecturer BPS-17 Solved Paper
Physics Lecturer BPS-17 SPSC Solved Paper
In the absence of external torque, the quantity which remains conserved is ______.
A. Force
B. Linear momentum
C. Angular momentum
D. Mass
Canonical transformations can often be conveniently found or verified by using a:
A. Generation gap
B. Generating function
C. Degenerating function
D. Separation tensor
The zeroth law of thermodynamics allow us to define:
A. Work
B. Pressure
C. Temperature
D. Thermal equilibrium
The Maxwell Ian speed distribution provides a direct explanation of:
A. Thermal expansion
B. The ideal gas law
C. Heat
D. Evaporation
The change in entropy is zero for:
A. Reversible adiabatic process
B. Reversible isothermal process
C. Reversible processes during which no work is done
D. Reversible isobaric process
The equation E=mc2 indicates that energy:
A. Equal mass moving at speed of light square
B. Equal moving mass
C. Is fundamentally different than mass
D. And mass is closely related
Which one of the following is the property of an ionic compound?
A. High melting and boiling point
B. Low melting and boiling point
C. Weak inter atomic forces
D. Non conductor of electricity