Question

In an experiment to determine the focal length of a convex lens, a student obtained a sharp inverted image of distant tree on the screen behind the lens. He / She then removed the screen and looked through the lens in the direction of object. She / He will see (a.) An inverted image of tree at focus of lens. (b.) No Image as the screen has been removed (c.) A blurred image on the wall of laboratory (d.) An erect image of the tree on the tree on the lens

Answer 1

An inverted image of a tree at the focus of the lens will be formed.

What is a convex lens and how it forms an inverted image?

• A convex lens is a lens that converges the coming rays of light and the light becomes parallel to the principal axis of the lens.
• When the student replaces the lens then it is clear that the image forms at the focus of the lens.

Thus, the correct option is (a): An inverted image of a tree at the focus of the lens.