State and prove the principle / Theorem of parallel axes.

State Theorem of parallel Axes

State and prove principle / theorem of perpendicular axes.

State and prove principle of parallel axes.

State and prove the Pythagoras theorem

State the principle of potentiometer.

State and prove Brewster's Law.

State Archimedes' principle.

State the conditions under which the theorem of parallel axes and perpendicular axes are applicable. State the mathematical expression .

State the principle of working of a Generator.

State and explain the principle of superposition of waves.