FACULTY OF SCIENCE, AUTUMN 2007
PHYS 124 LEC A1 : Particles and Waves (Instructor: Marc de Montigny)
Walker, Physics, Chapter 28: Physical Optics : Interference and Diffraction
- Section 28-1: Superposition and Interference
- P. 938 Constructive and Destructive Interference
- P. 939 : Constructive interference when d2-d1 = m λ (m = 0, 1, 2,...)
- P. 939 : Destructive interference when d2-d1 = (m-1/2) λ (m = 1, 2, 3,...)
- P. 965 Problem 9
- Some remarks on time shifts and path lengths
- Section 28-2: Young's Two-Slit Experiment
- P. 940 Figure 28-3: Young Apparatus
- P. 941 Figure 28-5: Path Difference
- Demonstration Interference of Light at a Double Slit
- P. 942, Eqs. 28-1: d sinθ = m λ, where m = 0, ±1, ± 2, ... (Constructive interference)
- P. 942, Eqs. 28-2 could be combined as one: d sinθ = (m - ½) λ, where m = ±1, ±2,... (Destructive interference)
- P. 941 Figure 28-6: Interference Pattern
- P. 941 Figure 28-7: leads to Eq. 28-3: y = L tanθ (Linear distance from central fringe)
- P. 966 Problem 22
- Section 28-3: Not in Syllabus
- Section 28-4: Diffraction
- This section deals mainly with Single-Slit Diffraction
- P. 951 Figure 28-18: Single-Slit Diffraction
- Demonstration Diffraction of Light by a Single Slit
- Demonstration Single-Slit Diffraction
- P. 951, Eq. 28-12: W sinθ = m λ for m = ±1, ±2, ... (Dark fringes)
- P. 952, Eq. 28-13 : approximate angular width of central fringe ~ 2θ ~ 2λ/W
- P. 967 Problem 44
- Diffraction and Interference
- Section 28-5: Not in Syllabus
- Section 28-6: Diffraction Gratings [Omitted in 2007]
- P. 958 Figure 28-26: Diffraction Grating
- P. 958 Figure 28-25: Diffraction Grating Pattern
- Demonstration Diffraction Grating
- P. 958, Eq. 28-16: d sinθ = m λ for m = 0, ±1, ±2, ... (Constructive interference)