Unit-7 : Optics
	Laws of Light
	Mirrors
	Spherical Mirrors
	Mirror Formula
	Refraction
	Total Internal Reflection
	Refraction at a Spherical Surface
	Refraction by Lens
	Power of Lenses
	Combination of Lens
	Refraction Through a Prism
	Scattering of Light
	Optical Instruments
	Microscope and Telescope
	Huygens Principle
	Reflection and Refraction of a Plane Wavefront at a Plane Surface
	Laws of Reflection and Refraction
	The Doppler Effect
	Interference of Light
	Young’s Double Slit Experiment
	Coherent and Incoherent Addition of Waves
	Condition for Sustained Interference
	Diffraction
	Resolving Power of an Objective Lens
	Polarisation