II. IMAGE FORMED. ldentify the type of image produced for each number. 26. f= 15cm, di = 37.5cm 27. do = 30 cm, di = 15cm 28. f= 12cm, dị = -12cm 29. f= -20cm, do = 25cm 30. f= -18cm, di = -6.4cm​

To determine the type of image formed, we analyze the given focal length (f), object distance (do), and image distance (di) using the properties of concave and convex mirrors or lenses.Key Concepts:Real Image: Formed when di is positive (on the same side as the outgoing light for lenses or opposite side for mirrors). It is inverted.Virtual Image: Formed when di is negative (same side as the object for mirrors, opposite side for lenses). It is upright.Concave Mirror/Lens: f is positive.Convex Mirror/Lens: f is negative.Image Identification:26. f = 15 cm, di = 37.5 cmf is positive → Concave mirror/lens.di is positive → Real and Inverted Image.✅ Real, Inverted Image27. do = 30 cm, di = 15 cmdi is positive → Real Image.Since di < do, the image is smaller.✅ Real, Inverted, Reduced Image28. f = 12 cm, di = -12 cmf is positive → Concave lens/mirror.di is negative → Virtual and Upright Image.✅ Virtual, Upright Image29. f = -20 cm, do = 25 cmf is negative → Convex lens/mirror.Convex mirrors always form virtual, upright, and reduced images.✅ Virtual, Upright, Reduced Image30. f = -18 cm, di = -6.4 cmf is negative → Convex mirror/lens.di is negative → Virtual Image.✅ Virtual, Upright Image

Answered by chrismarklumansoc | 2025-04-03