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?...
The Nature of Single-Slit Diffraction When plane waves are incident normally on a single slit, a?diffraction pattern?is produced This is represented as a series of light and dark?fringes?which show...
Period of a Simple Pendulum & a Mass-Spring System Two examples of simple harmonic oscillators are: A simple pendulum A mass-spring system Considering equations related to the restoring force l...
Calculating Energy Changes in SHM There are many equations to learn in the topic of simple harmonic motion The key equations are summarised below: A summary of the equations related to simple harmo...
Energy Changes in SHM During?simple harmonic motion, energy is constantly exchanged between two forms: Kinetic?energy Potential?energy The potential energy could be in the form of: Gravitational po...
