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List four characteristics of the image f...

List four characteristics of the image formed by a convex lens of focal length 20 cm when the object is placed in front of it is a distance of 10 cm from its optical centre .

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To solve the question, we need to determine the characteristics of the image formed by a convex lens when an object is placed in front of it. The given data includes the focal length (f) of the lens and the object distance (u). ### Step-by-Step Solution: 1. **Identify the Given Values:** - Focal length of the convex lens, \( f = +20 \, \text{cm} \) (positive because it is a convex lens). - Object distance, \( u = -10 \, \text{cm} \) (negative as per the sign convention for lenses). ...
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