Question

How does reflection differ from refraction and diffraction?

Answer 1

There are 3 major differences in them.

Explanation:

Reflection: It is the phenomena of getting back the light you've shown from a light source with the same angle. This is a same medium phenomena.

Refraction: It is the phenomena of bending of light when it changes it medium. This can rarer to denser or denser to rarer.

Diffraction: It is the phenomena of bending of light near the edges of the object. It is same medium phenomena.

From the above definitions, we can conclude that:

Reflection and Diffraction are same medium phenomena.
Refraction is different medium phenomena.
Refraction and Diffraction are just bending of light. Whereas, Reflection is getting back the light you've thrown from a source of light.