15. Which of the following statements best describes the optical element hidden
ID: 1795323 • Letter: 1
Question
15. Which of the following statements best describes the optical element hidden by the black box in the diagram? A) The black box must contain a convex lens B) The black box must contain a concave lens. C) The black box must contain a plain sheet of glass D) None of the other statements is true. 16. Which of the following statements best describes the optical element hidden by the black box in the diagram? A) The black box must contain a convex mirror. B) The black box must contain a concave mirror C) The black box must contain a plane mirror. D) None of the other statements is true.Explanation / Answer
15) The black box must contain a convex lens. So option A is correct.
Explanation
All the rays are converging at single point, so it contain a convex lens.
16) The black box must contain a convex mirror.