Question

The nature and the size of the image formed when the object is kept between the principal focus ‘F1 ’ and optical centre ‘O’ of a convex lens​

Answer 1

Answer:

Answer: The case when object is between F1 and the optical centre O of the lens shows the use of convex lens as a magnifying glass . This is because here the image formed is erect and magnified .

Answer 2

Answer:The case when object is between F1 and the optical centre O of the lens shows the use of convex lens as a magnifying glass . This is because here the image formed is erect and magnified

Explanation:

We follow the usual method of drawing the ray-diagram:

Consider two rays starting from the object. One passes through the optical center of the lens and the other  would get refracted by the lens  observe that on the other side of the lens both these rays diverge and the image location can be found by extending the refracted rays backwards on the object's side the lens.When object AB is placed between the optical center and Focus F1 of the Convex lens, the image A ′ B ′is always located somewhere on the same side of the lens as the object and somewhere further from the lens. The image is located behind the object is upright and enlarged.

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