1. What happens when parallel rays of light pass through an equiconvex lens?
2. What type of image is formed by an equiconcave lens for a distant object?
3. Where is the image formed when an object is placed beyond 2F in a convex lens?
4. What is the nature of the image formed when an object is placed at the focus of a convex lens?
5. What type of image is always formed by a concave lens?
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