Among the following, the image formed by a convex lens is virtual when
a) 0 <u<F
b) F<u<2F
c) 2F <u< og
d) at 2F
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The correct option is (a)
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The image formed by a convex lens is virtual when 0 <u<F.
A convex lens is thicker in the middle and thinner at its ends. The convex lens converges the light rays to form an image.
These types of lenses can form both real as well as a virtual images. Virtual images cannot be obtained on the screen.
A convex lens forms a virtual image when the object lies in between the optical center (O) and principal focus(F).
The nature of the image formed by a convex lens when the object is in between O and F are:
- An image formed is highly magnified in size than the object.
- The image is formed behind the lens.
- An erect image is formed.
- The image forms beyond 2F.
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