Answer: f from lens.
- A 2f from lens
- B f from lens
- C Between f and 2f
- D At the object position
Correct answer: B. f from lens
Explanation: For a distant (infinity) object, parallel rays converge at the focal point. Image forms at distance f from lens.
Concave mirror ray construction: a ray parallel to the axis reflects through F, and a ray through F reflects parallel, locating the inverted real image. Image: Maxmath12, CC0, via Wikimedia Commons.
Concept context
Reflection, refraction, lenses, mirrors, total internal reflection.