The only characteristics of a refracted ray that are not those of a reflected ray are (b) changes speed and (f) passes through the boundary.
When a ray is refracted, it only has these two properties; when it is reflected, it does not. When a beam encounters the boundary between two media and bounces back, reflection happens. The beam changes direction when it is reflected, but it doesn't change speed since the medium doesn't change.
When a beam travels over the boundary between two dissimilar media, refraction happens. The ray changes direction and speed when it is refracted because the medium changes.
Based on these definitions, we can conclude that the only characteristics of a refracted ray that are not those of a reflected ray are B. (changes speed) and F. (passes through the boundary)
The complete question is : Which are characteristics of a ray when it hits a boundary and refracts, but not when it hits the boundary and reflects? Check all that apply. A. changes direction B. changes speed C. does not change direction D. does not change speed E. bounces off the boundary F. passes through the boundary.