==== Chapter 09: Physical Optics ===== Notes of Chapter 09: Physical Optics of “Physics XI” for FSc Part 1 published by Punjab Textbook Board, Lahore. These notes are very helpful to prepare Physics paper of FSc Part 1 for Federal Board, Multan Board, Faisalabad Board, Sargodha Board, Gujranwala Board, DG Khan Board, Rawalpindi Board or any other board of Punjab, Pakistan. === Summary and Contents: === It is the branch of physics which deals with the production, propagation and properties of light. * Optics * Wavefronts * Huygen's Principle * Interference of Light Waves * Young's Double Slit Experiment * Interference in thin films * Newton's Rings * Michelsons Interferometer * Diffraction of Light * Diffraction due to Narrow Slit * Diffraction Grating * Diffraction of X-Rays by crystals * Differecne b/w Interference and Diffraction * Polarization === View Online & Download ===