Question

read the paragraph and glossary excerpt

many optical illusions, such as what can be created when light passes through water, are caused by refraction. the law of refraction is also known as snell’s law; it was named after willebrord snellius, a dutch mathematician and astronomer whose discoveries led to our modern understanding of the relationship between angles and refraction.

reaction: the creation of a new substance

refraction: the bending of a beam of light

replication: the process by which an original element is copied

revolution: the orbit of one object around another

based on the information, which most likely happens to a beam of light when it passes through water?

1. it copies, or duplicates, itself.

1. it bends, or changes direction.

1. it creates a new light source.

1. it is absorbed and disappears.

Explanation:

1. Analyze Option 1: The glossary defines "replication" as copying an element. Light passing through water doesn't duplicate itself, so this is incorrect.
2. Analyze Option 2: The paragraph says optical illusions (like those with light in water) are caused by refraction, and the glossary defines "refraction" as the bending of a light beam. So when light passes through water, it bends (changes direction) due to refraction. This matches.
3. Analyze Option 3: "Reaction" is creating a new substance, but light passing through water doesn't create a new light source. Incorrect.
4. Analyze Option 4: The text gives no info about light being absorbed and disappearing when passing through water. Incorrect.

Answer:

1. It bends, or changes direction