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In class 11 students will come across the topic of chemical bonding in chapter 4 of the chemistry textbook. Basically, in this chapter, students will learn the different bonds that exist between elements and how these bonds are important in the formation of a compound. To help students understand the chapter and clear the basics, free CBSE notes for class 11 Chemistry – chemical bonding and molecular structure are provided here. These notes have been thoroughly prepared by experts to further help students study effectively and even perform well in the exams. These notes also contain detailed information about important chapter topics and students can use the notes to complete their revisions effectively before the exams. THESE ARE HANDWRITTEN NOTES WHICH WILL HELP YOU TO PERFORM BETTER IN YOUR EXAMINATION. THANKYOU FOR VISITING PLEASE COMMENT AND SHARE.

Wave Optics is a branch of physics in which we study about the behaviour of light as wave. Starting with some simple concept and just over viewing of chapter. This notes are handwritten by the best teacher of physics and based on NCERT. THE FULL CHAPTER NOTES ARE IN PDF BELOW 1. Wave Nature of Light: Huygen’s Theory There are some phenomena like interference, diffraction and polarisation which could not be explained by Newton’s corpuscular theory. These were explained by wave theory first proposed by Huygen. The assumptions of Huygen’s wave theory are: (i) A source sends waves in all possible directions. The locus of particles of a medium vibrating in the same phase is called a wavefront. For a point source, the wavefront is spherical; while for a line source the wavefront is cylindrical. A distant wavefront is plane. (ii) Each point of a wavefront acts as a source of secondary wavelets. The envelope of all wavelets at a given instant gives the position of a new wavefront. 2. Wavefr