An image of the same size is obtained if the object is placed in front of a convex lens

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

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Solution

(c) At twice the focal length
An image of the same size is obtained if the object is placed in front of a convex lens at twice the focal length.

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Similar questions

Where should an object be placed in front of a convex lens to get a real image of the size of the object?

(a) At the principal focus of the lens

(b) At twice the focal length

(d) Between the optical centre of the lens and its principal focus.

Q. Question 3
Where should an object be placed in front of a convex lens to get a real image of the size of the object?

(a) At the principal focus of the lens
(b) At twice the focal length
(c) At infinity
(d) Between the optical centre of the lens and its principal focus

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

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

Q. A real object is placed in front of a convex lens of focal length

f

at its principal focus. Then the image is formed at

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An image of the same size is obtained if the object is placed in front of a convex lens (a) at infinity (b) at the focus (c) at twice the focal length (d) between focus and the lens

(c) At twice the focal length An image of the same size is obtained if the object is placed in front of a convex lens at twice the focal length.

An image of the same size is obtained if the object is placed in front of a convex lens

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

(c) At twice the focal length
An image of the same size is obtained if the object is placed in front of a convex lens at twice the focal length.