Question

↑ 2.5.2 test (cst): computer - scored unit test
which observation is evidence of refraction in this photo?
a. the snorkel in the mans mouth appears yellow.
b. the mans arm is clearly seen under the water.
c. the top of the mans head appears disconnected from the rest of his head.
d. the water in which the man is swimming is transparent.

Explanation:

Step1: Recall refraction concept

Refraction is the bending of light as it passes from one medium to another, causing visual distortions.

Step2: Analyze each option

• Option A: Color appearance is due to absorption and reflection, not refraction.
• Option B: Clear - view of arm is normal vision, not related to refraction.
• Option C: The apparent disconnection of the man's head is due to light bending as it passes from water to air, which is refraction.
• Option D: Transparency is a property of the medium, not evidence of refraction.

Answer:

C. The top of the man's head appears disconnected from the rest of his head.