Question

For a convex lens we cannot get image on a screen when object is placed: Between focus and optical centre Between focus and centre of curvature At centre of curvature Beyond centre of curvature

Answer 1

Answer:

A virtual, erect and enlarged image is formed at the same side of lens, when an object is placed between principal focus, F1 and optical centre, O of a convex lens.

Answer 2

for a convex lens we cannot get image on a screen when the object is placed between the focus and the optical centre.

Option a

Explanation:

• this is because when the object is placed between the focus and optical centre then the research of light meet at the place which is located at the side where the object is placed.
• As a result of this the image which is formed by such type of lens is virtual image , virtual image can never be taken on a screen. Where is in all the other options the image is real and it can be taken on a screen

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