A 1 cm high object is placed at a distance of 2f from a convex lens. What is the height of the image formed?

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Solution

The height of the image formed is 1 cm. The reason being, when an object is placed at a distance of 2f from a convex lens, the size of the image formed is equal to the size of the object .

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Similar questions

When an object is placed at a distance of 36 cm from a convex lens, an image of the same size as the object is formed. What will be the nature of image formed when the object is placed at a distance of :

(a) 10 cm from the lens ?

(b) 20 cm from the lens ?

Complete the following sentences :

(a) An object is placed at a distance of more than 40 cm from a convex lens of focal length 20 cm. The image formed is real, inverted and ..........

(b) An object is placed at a distance 2f from a convex of lens of focal length f. The size of image formed is ............ that of the object.

(c) An object is placed at a distance 5 cm from a convex of focal length 10 cm. The image formed is virtual, upright and ............

Q. An object placed at 2F from a convex lens of focal length F, forms an image. Where is the image formed?

Q. A convex lens has a focal length of

15 c m

. At what distance from the lens should the object be placed so that it forms on its other side real inverted image

30 c m

away from the lens? What would be the size of image formed if the object is

5 c m

high?

An object is placed at a distance of $\frac{f}{2}$ from a convex lens. The image will be formed:

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