How would a pencil look like if you saw it through (a) a concave lens, and (b) a convex lens? (Assume the pencil is close to the lens). Is the image real or virtual?
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Image is virtual in both the cases.
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(a) A pencil will look smaller if you saw it through a concave lens
(b) A pencil will look bigger if you saw it through a convex lens
Explanation:
(a) A pencil will look smaller if you saw it through a concave lens as the ray of light passes through the lens and diverges back creating a diminished image of the object.
(b) A pencil will look bigger if you saw it through a convex lens as the ray of light passes through the lens and converges creating the image double the size of the object.
The image is virtual in both the cases.
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