Refraction of Waves

The effect when straight waves pass from deep to shallow water

Wavelength becomes shorter, speed decreases and frequency remain unchanged

Relationship between speed and wavelength in deep and shallow region

Refraction of waves

Change in direction of propagation when a wave moves from one medium to another medium

Shallow to deep region

Wavelength decreases, refracted closer to normal

Deep to shallow region

Wavelength increases, refracted away from normal

Example of refraction in daily life

The formation of bay and cape at the seaside

Characteristic of waves at the cape

Energy of wave converged to a smaller area, amplitude increases

Medium with higher speed of light

Medium with less density

Snell's Law equation

Example of phenomenon related to refraction of sound wave

The sound of a distance train is clearer at night