Question

what is the difference between reflection and refraction?

Answer 1

Reflection is when light bounces off an object, while refraction is when light bends while passing through an object.
When you look at a mirror the light bounces of the mirror from different angles, so you can see your reflection. If you point light or a laser pointer at a mirror, it will reflect to the wall in front of the mirror.
Refraction is when light bends. For example, When there is a rainbow in the sky, the light from the sun is being refracted from the particles of water and splits the light up into different colors. Try shining a light in a clear prism!
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Answer 2

Reflection refers to bouncing back of light from an opaque surface like when a beam of light falls on a mirror it just bounce back and this is called reflection , refraction is a different thing it occurs when light changes it's medium in which it's travelling like when a ray of light enters water from air or enters a lens or something where it's medium is getting changed , the light ray will bend and this is what we call refraction so, refraction is bending if light when it changes it's medium.