In the above figures f is located at the focal point of the lens. For each state
ID: 1609142 • Letter: I
Question
In the above figures f is located at the focal point of the lens. For each statement select True or False:
The lens in Fig. a is a converging lens.
An object placed between f and the lens in Fig. a results in an image on the right side of the lens.
An object placed between f and the lens in Fig. a produces a real image.
An object placed to the left of f in Fig. b results in an image on the right side of the lens.
An object placed to the left of f in Fig. a results in an image on the right side of the lens.
An object placed to the left of f and the lens in Fig. b produces a real image.
An object placed to the left of f and the lens in Fig. a produces a real image.
(a.) (b.)Explanation / Answer
1. The statement is true.
2. The statement is true. This is because real image for the convex lens is always on the same side of the object.
3. The statement is true. The convex lens forms a real image if the object distance is less tha the focal length.
4.The statement is true. This is because, concave lens always gives a real which is on the same side of the object.
5.The statement is true. This is because real images are always formed on opposite side of the object.
6. The statement is False. This is because the concave lens never forms a real image.
7. 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.
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