Reflection and refraction are the characteristics of light.
Reflection occurs when light reflects after bounces off the surface of a material. It bounces away at the same angle that it hits the material. If it hits at an angle of 45 degrees then it will bounce in the opposite direction and form another 45 degrees angle.
There are two types of reflection, Specular reflection and diffuse reflection.
Specular reflection occurs if the light hits a smooth surface. The light will be reflected perfectly and the angle of reflection will be equal to the initial angle.
Diffuse reflection occurs if the light hits a rough surface. The light will be reflected in different directions and angles. The image will be discernible.
Light will be refracted when it goes through a material. The direction of the light will change though. The light will be refracted in the maximum speed if it is in a vacuum condition, when travels in anything else it slows down. During refraction, the light does not change its frequency but the speed is changed and changed the wavelength. Since, all of them are related one changes will change all of them.
Materials can reflect and refract light at the same time. The light comes from different directions and of different frequencies and interacts differently with the material.