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Q: Where should an object be placed in front of a convex lens in order to obtain its original size?
  • A. 2F₁
  • B. infinite
  • C. away from 2F₁
  • D. on F₁
Correct Answer: Option A - An object must be placed at a distance of 2F₁ in front of a convex lens to obtain its original size.
A. An object must be placed at a distance of 2F₁ in front of a convex lens to obtain its original size.

Explanations:

An object must be placed at a distance of 2F₁ in front of a convex lens to obtain its original size.