Farsighted people, who have lost their spectacles, can still read a book by looking through a small (3-4 mm) hole in a sheet of a panel |
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(a) |
Because the fine hole produces an image of the letters at a longer distance |
(b) |
Because in doing so, the distance of the object is increased |
(c) |
Because in doing so, the focal length of the eye lens is effectively decreased |
(d) |
Because in doing so, the focal length of the eye lens is effectively increased. |
Farsighted people, who have lost their spectacles, can still read a book by looking through a small (3-4 mm) hole in a sheet of a panel |
|||
(a) |
Because the fine hole produces an image of the letters at a longer distance |
(b) |
Because in doing so, the distance of the object is increased |
(c) |
Because in doing so, the focal length of the eye lens is effectively decreased |
(d) |
Because in doing so, the focal length of the eye lens is effectively increased. |
Because in doing so, the focal length of the eye lens is effectively decreased