WEEK 9-10: Diffraction

Diffraction and Interference – Learning Outcomes

  •  Demonstrate the wave nature of light.
  •  HL: Derive the diffraction grating formula.
  • Solve problems about diffraction gratings.
  •  Discuss interference in thin films.
  • Apply knowledge of thermodynamics, sound waves, and light waves to explain natural physical processes and related technological advances.
  •  Use an understanding of algebraic mathematics along with physical principles to effectively solve problems encountered in everyday life, further study in science, and in the professional world.
  •  Design experiments and acquire data in order to explore physical principles, effectively communicate results, and critically evaluate related scientific studies.
  •  Assess the contributions of physics to our evolving understanding of global change and sustainability while placing the development of physics in its historical and cultural context.

LECTURE 1: Diffraction, Intensity distribution in single slit diffraction

LECTURE 2: Circular aperture Diffraction

LECTURE 3: Diffraction Grating

LECTURE 4:Dispersion & resolving power

LECTURE 5: Diffraction in Multiple slits

LECTURE 6: Double slit Interference, Rayleigh Criterion

Download Files

diffraction-and-interference-1page.pdf (0.57 MB )

l5.pdf (0.50 MB )