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...
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...
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 ...
有些學(xué)生籠統(tǒng)的把GCSE大考比作中考。但就重要性而言，GCSE大考成績可比國內(nèi)的中考成績要重要許多。A-level課程成績直接決定小伙伴們能否有資格申請英國大學(xué)。如果小伙伴們在GCSE階段有過相關(guān)課程的學(xué)習(xí)經(jīng)驗(yàn)和知識(shí)...
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,...
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...
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...
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...
Intensity of Interference Maxima & Minima Using different sources of?monochromatic light?demonstrate that: Increasing the?wavelength?increases the?width?of the fringes The?angle of diffraction?...
