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Physics Paper 2 (Waves)

Some waves require a medium to travel through. These are called mechanical waves. Electromagnetic waves require no medium to travel
through.

In all waves, something oscillates in order to transfer energy. In transverse waves, the oscillations are perpendicular to the direction of
movement. In longitudinal waves…

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Polarization is where waves are made to oscillate in one plane only. This only happens to transverse waves as they can oscillate in multiple
planes. Waves can be polarized to avoid interference.

As all electromagnetic waves travel at the same speed, frequency and wavelength are inversely proportional: as one gets…

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