Question

in each of these situations light refracts, except for one. identify the case in which light is not refracted.
a a person wears glasses
b sunlight travels through space
c a magnifying glass enlarges an image
d a fish is seen at the bottom of a stream

Explanation:

To determine when light is not refracted, we analyze each option:

• Option A: Glasses (lenses) use refraction to bend light for vision correction.
• Option B: Space is a vacuum (no medium change). Refraction requires light to pass between different media (e.g., air to glass, water to air). In a vacuum, light travels in a straight line without refraction.
• Option C: A magnifying glass (lens) refracts light to enlarge images.
• Option D: Seeing a fish in a stream involves refraction (light bends when moving from water to air).

Answer:

B. sunlight travels through space