BRAINCAKEPolarisation
Polarised waves oscillate in one plane only. Light from a filament light emits waves in many planes. The oscillation are always 90 ° to the direction of energy transfer. It is possible to plane-polarise transverse waves and block waves with oscillations in all but one plane.
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Key terms in this lesson
- energy
- The capacity of a system to do work.
- transverse wave
- A wave in which the particles, or fields, oscillate at right angles to the direction of energy transfer.
- longitudinal wave
- A wave in which the particles oscillate parallel to the direction of energy transfer.