IB DP Physics: HL复习笔记9.5.1 The Doppler Effect
The Doppler Effect When a source of sound, such as the whistle of a train or the siren of an ambulance, moves away from an observer: It appears to decrease in frequency, i.e. it sounds lower in pit...
IB DP Physics: HL复习笔记9.4.3 Resolvance of Diffraction Gratings
Resolvance of Diffraction Gratings In order to know if a diffraction grating is able to resolve two wavelengths, the resolving power of the diffraction grating must be found This is based on the Ra...
IB DP Physics: HL复习笔记9.4.2 Rayleigh Criterion Calculations
Rayleigh Criterion Calculations The Rayleigh Criterion can be mathematically described by considering angular separation and single-slit diffraction Angular separation can be calculated using the e...
IB DP Physics: HL复习笔记9.4.1 The Rayleigh Criterion
Diffracting Aperture A circular aperture allows a cone of light to enter a region behind the aperture Examples of circular aperture include: A lens within an optical device such as a camera The pup...
IB DP Physics: HL复习笔记9.3.5 Thin Film Interference
Thin Film Interference Thin film interference causes the iridescence seen in: Nature on peacock feathers Glossy flower petals Soap bubbles The shiny side of a CD Thin layers - or films - of oil on ...
IB DP Physics: HL复习笔记9.3.4 The Diffraction Grating Equation
The Diffraction Grating Equation The angles at which the maxima of intensity (constructive interference) are produced can be deduced by the diffraction grating equation: The lines per m (or per mm,...
IB DP Physics: HL复习笔记9.3.3 Diffraction Grating Patterns
Diffraction Grating Patterns A diffraction grating is a plate consisting of a very large number of parallel, identical, close-spaced slits When monochromatic light is incident on a grating, a patte...
IB DP Physics: HL复习笔记9.3.2 Two-Slit Interference Patterns
Two-Slit Interference Patterns For two-source interference fringes to be observed, the sources of the wave must be: Coherent (constant phase difference) Monochromatic (single wavelength) When two w...
IB DP Physics: HL复习笔记9.3.1 Young’s Double-Slit Experiment
Young’s Double-Slit Experiment Young’s double-slit experiment demonstrates how light waves can produce an interference pattern The setup of the experiment is shown below: Young’s double-slit experi...
