State the Law of Malus.

(a) State law of Malus. (b) Draw a graph showing the variation of intensity (I) of polarised light transmitted by an analyser with angle (theta) between polariser and analyser. (c ) What is the value of refractive index of a medium of polarising angle 60^(@) ?

State the laws of liquid pressure.

State the law of equipartition of energy.

State the laws of reflection.

State the laws of static friction.

State the law of conservation of mass.

State the laws of vibrating strings.

State the First Law of thermodynamics. Name the physical quantity that remains conserved in this law ?

State the laws of refraction of light. State at least three examples of refraction of light.

(a) What is meant by reflection ? (b) State the laws of reflection