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Q: An optical device X forms an image CD for an object AB as shown in the figure. The device X is a :
question image
  • A. concave mirror
  • B. convex lens
  • C. convex mirror
  • D. concave lens
Correct Answer: Option A - A concave mirror has a reflective surface that is curved inward and away from the light source. Thus, option (I) is the correct answer.
A. A concave mirror has a reflective surface that is curved inward and away from the light source. Thus, option (I) is the correct answer.

Explanations:

A concave mirror has a reflective surface that is curved inward and away from the light source. Thus, option (I) is the correct answer.