Waves definitions

1. The distance between two identical positions on two adjacent waves. It is commonly measured from peak to peak or trough to trough (10)
4. The spreading of waves as they pass through a gap of a similar magnitude to their wavelength (11)
5. The power transferred per unit area. It is proportional to the square of a wave's amplitude (9)
10. The changing of speed of a wave as it passes into a new medium. If it passes into an optically denser medium, it will slow down. (10)

1. The product of a wave's frequency and wavelength (4, 5)
2. The superposition of the amplitudes of waves when they meet (12)
6. The time taken for a wave to complete one full cycle (6)
7. A position of minimum displacement in a stationary wave (5)
8. The difference in phase between two points on a wave. It is usually expressed in radians (5, 10)
9. The angle of incidence that results in an angle of refraction of exactly 90°. It is when the refracted ray travels along the boundary line (8, 5)

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