Textbook Compulsory (3-4) Chapter 5 Section 3 ~ Section 4 "Diffraction and Polarization of Light" ppt Learning objectives: 1. Understand the diffraction and polarization phenomena of light, and know that the light wave is a transverse wave. 2. Know the conditions under which light diffracts obviously and the qualitative relationship between the diffraction pattern and the wavelength and slit width. 3. Understand the characteristics and application of laser. Key difficulties: 1. The conditions under which light diffracts significantly. 2. The characteristics of diffraction fringes and the factors that affect the width of the central fringe.
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