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 concave lens is thick _____________ | |||
| Right Option : A | |||
| View Explanation | |||
An object is placed before a concave lens. The image formed: | |||
| Right Option : A | |||
| View Explanation | |||
The concave lens is also known as ____________________ . | |||
| Right Option : B | |||
| View Explanation | |||
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