In the above figures f is located at the focal point of the lens. For each state
ID: 1973299 • Letter: I
Question
In the above figures f is located at the focal point of the lens. For each statement select True or False.
True or False.
1) An object placed to the left of f in Fig. b results in an image on the left side of the lens.
2) An object placed to the left of f and the lens in Fig. a produces a virtual image.
3) An object placed to the left of f in Fig. a results in an image on the right side of the lens.
4) An object placed between f and the lens in Fig. a results in an image on the left side of the lens.
5) The lens in Fig. a is a converging lens.
6) The An object placed to the left of f and the lens in Fig. b produces a real image.
7) An object placed between f and the lens in Fig. a produces a virtual image.
(please explain! thanks!)
Explanation / Answer
(1) The statement is true. This is because, concave lens always gives a virtual which is on the same side of the object. (2) The statement is False. Because, convex lens gives virtual images only for the object distances which are less than the focal length. Means if the object is placed to the right of the f then we get virtual. But in this case the object is placed left of the f. So we get a real image. (3) The statement is true. This is because real images are always formed on opposite side of the object. (4) The statement is true. This is because virtual image for the convex lens is always on the same side of the object. (5) The statement is true. (6) The statement is False. This is because the concave lens never forms a real image. (7) The statement is true. The convex lens forms a virtual image if the object distance is less tha the focal length.Related Questions
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