Diverging Lens or Concave Lens
Diverging Lens or Concave Lens
Concave lens is the lens which is thinner in the middle than the edge. A parallel beam of light falls on a concave lens as shown in the figure. After passing through the concave lens, the rays of light are diverging. Since, a concave lens diverges light rays falling on it, therefore, it is also called diverging lens.
Image formed by concave lens:
In the case of a convex lens, the nature of image formed depends on the distance of the object from the convex lens. But, this not followed in the case of a concave lens. In the case of a concave lens that whatever be the distance of an object from a concave lens, the image formed by a concave lens is always
(i) Virtual
(ii) Erect and
(iii) Smaller than the object (or diminished).
Uses of Concave Lens:
1. In order to see the image of the person standing outside, concave lenses are used in the peep holes in the door of hotels rooms.
2. Concave lenses are used in making spectacles.
A Match the entries given in Column - I with those in Column - II.
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| Right Option : A | |||||||||||||||
| View Explanation | |||||||||||||||
The concave lens is also known as ____________________ . | |||
| Right Option : B | |||
| View Explanation | |||
Which of the following are correct ? (a) A concave lens diverges light rays falling on it, therefore, it is also called converging lens. (b) The image formed by a concave lens is always virtual,erect and smaller than the object . (c) Concave lenses are used in the peep holes in the door of hotels rooms. | |||
| Right Option : B | |||
| View Explanation | |||
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7thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
Aman Kumar Shrivastava
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