An object is placed at the following distances from a convex lens of focal length 15 cm , which position of the object will produce a diminished real image ?
1. 35 cm
2. 30 cm
3. 20 cm
4. 10 cm
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Explanation:
The focal length of this convex lens is 10 cm. This means that f=10cm. i) A diminished real image is formed by a convex lens when the object is beyond 20 cm ( or more than 20 cm) is 25 cm. Thus, 25 cm position of the object will produce a diminshed real image.
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