An object is placed at a distance of 15 cm from a convex lens of focal length 20 cm. List four characteristics (nature, position etc.) of the image formed by the lens.
u = -15 ⇒ f = 20 cm
Here, four characteristics of the image formed by the lens are :
- Image formed is virtual.
- Image is erect.
- Image is formed on the same side of the lens as the object,
- Enlarged image.