Across
- 3. - This type of filter can polarise unpolarised light
- 6. - These waves cannot be polarised
- 7. - The type of electromagnetic wave with the shortest frequency
- 8. - The type of electromagnetic wave which the lowest energy
- 10. - The plane of polarisation of an electromagnetic wave is defined as the plane in which the ______ oscillates
- 11. polarised - Transverse waves are _____________ if the vibrations only stay in one plane
Down
- 1. - An example of a longitudinal wave
- 2. - The type of waves which are oscillating electric and magnetic waves which can travel through a vacuum
- 4. waves - A type of wave that passes through a substance
- 5. - Longitudinal waves are waves in which the direction of vibration of the particles is _________ to the direction that the wave travels
- 9. - These waves vibrate in a direction perpendicular to the direction that the wave travels