The electromagnetic spectrum Student activity Play

The electromagnetic spectrum Animation Play

The emission and absorption of photons Student activity Play

The emission of light Animation Play

The frequency of free oscillation Student activity Play

The frequency of free oscillation Whiteboard exercise Play

The frequency of the perceived wave Animation Play

The frequency of the wave perceived by the observer Animation Play

The instruments used for observation of the sky Slideshow Play

The law of refraction Student activity Play

The length of a laser Illustration Play

The measurement of wavelength Animation Play

The origin of spectral lines Animation Play

The oscillations of a string Animation Play

The oscillations of a string Student activity Play

The oscillations of a string Animation Play

The peak in the graph of the emissive power Animation Play

The phenomenon of light Animation Play

The phenomenon of radiation Student activity Play

The properties and function of chlorophyll Student activity Play

The properties of γ radiation Student activity Play

The quantities that characterise a wave Animation Play

The range of radiation Chart Play

The ranges of electromagnetic waves Animation Play

The ranges of radio waves Animation Play