BSC SEM I (NEP)

This Unit Contains

• Interference - I : Interference, Conditions for Production of Interference, Constructive & Destructive Interference, Methods for Production of Interference: Interference by Division of Wavefront, Interference by Division of Amplitude

• Interference - II : Interference in Thin Films: Conditions of Maxima & Minima in Reflected & Transmitted System, Necessity of an Extended Source, Thin Films in White Light, Anti-Reflection Films

• Interference - III : Interference in Wedge Shaped Films, Newton's Rings: Experimental Arrangement, Radii of Newton's Rings, Wavelength in terms of Radius of Curvature of Lens, Measurement of Refractive Index using Newton's Rings

• Diffraction - I : Wavefront: Types of Wavefronts, Diffraction, Types of Diffraction: Fresnel and Fraunhofer Diffraction, Difference between Diffraction & Interference, Difference between Fresnel & Fraunhofer Diffraction

• Diffraction - II : Diffraction due to Multiple Slits, Diffraction Grating: Grating Spectra, Order of Maxima, White Light Spectra, Resolving Power, Rayleigh Criterion of Resolution, Resolving Power of Diffraction Grating