<P> Reflection is the 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 . Common examples include the reflection of light, sound and water waves . The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected . Mirrors exhibit specular reflection . </P> <P> In acoustics, reflection causes echoes and is used in sonar . In geology, it is important in the study of seismic waves . Reflection is observed with surface waves in bodies of water . Reflection is observed with many types of electromagnetic wave, besides visible light . Reflection of VHF and higher frequencies is important for radio transmission and for radar . Even hard X-rays and gamma rays can be reflected at shallow angles with special "grazing" mirrors . </P>

Where do you find reflection of light in your daily life write few examples