Copy of Waves

1. Refraction, Reflection, Diffraction

1.1. Refraction

1.1.1. change in direction of a wave due to a change in its transmission medium

1.2. Reflection

1.2.1. change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated

1.3. Diffraction

1.3.1. waves occurs when waves encounter obstacles or gaps in obstacles

2. Wavefront

2.1. locus of points having the same phase: a line or curve in 2d, or a surface for a wave propagating in 3d

3. 2 types

3.1. Longitudinal : Left and right direction

3.2. Transverse : up and down direction

4. What waves contain

4.1. Wavelength

4.2. Peak

4.3. Amplitude

4.4. Trough