Given the statement:
The bending ability of a substance is recorded on the index of refraction.
Let's determine if the statement is True or False.
The index of refraction which can also be called the refractive index can be said to be a measure of the bending of a ray light when it passes from one medium to another.
Therefore, the bending ability of a substance is recorded on the index of refraction.
Hence, this statement is TRUE.
ANSWER:
True