Draw ray diagrams showing the image formation by a concavelens when an object is placed at the focus of the lens

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Solution

When Object is placed at focus of Concave lens then the image will be formed at infinity and will be Highly diminished,Virtual and Erect.

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Draw ray diagram showing the image formation by a convex lens when an object is placed at infinity.

Q. Draw ray diagrams showing the image formation by a convex lens when an object is placed at twice the focal length of the lens.

Question 33
Draw ray diagrams showing the image formation by a concave lens when an object is placed

(a) at the focus of the lens
(b) between focus and twice the focal length of the lens
(c) beyond twice the focal length of the lens

Draw ray diagrams showing the image formation by a convex lens when an object is placed

(a) between optical centre and focus of the lens
(b) between focus and twice the focal length of the lens
(c) at twice the focal length of the lens
(d) at infinity
(e) at the focus of the lens

Q. If the object is placed at a principal focus

F_{1}

of a convex lens, draw the ray diagram for the image formation.

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