A a concave lens has focal length of 15cm at what distance should be the object placed from the lens so that it is formed and image at 10 cm from the lens? What will be the nature and magnification of the image
Asked by malkabaswarai | 27th Mar, 2020, 12:07: PM
If a concave lens has focal length of 15 cm then the distance of that object from the lens such that it forms an image at 10 cm from the lens is calculated as follows:
The magnification of lens is
As, magnification is less than 1 the size of image is less than object size.
The image formed by concave lens is at same side as that of object.
Thus, nature of image is virtual, erect and diminished.
Answered by Shiwani Sawant | 27th Mar, 2020, 01:08: PM
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